The 8 Best Gut Health Supplements of 2025, According to a Gastroenterology Dietitian

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More and more people are gaining awareness of the importance of gut health and eating foods rich in probiotics and prebiotics — and for good reason.

Gastrointestinal (GI) health is integral to overall health, and a healthy gut can strengthen the immune system.

Research also suggests that a healthy gut could even support mental health, in addition to its positive impact on physiological health.

Supplementation and diet can help maintain a healthy gut. This may be especially useful if you’re part of the 40 percent of Americans whose daily activities are limited by uncomfortable digestive symptoms.

While a growing number of products claim to help in this area, it’s important to know what’s informed by evidence and best for your individual needs.
For chronic bowel issues such as gas, bloating, diarrhea, or constipation, diet and lifestyle modifications are often the first steps toward improving how you feel, and consulting a gastroenterologist or GI-specialized dietitian can help you get tailored guidance.

However, not all digestive problems respond well to these types of changes; some may benefit from a multifaceted approach, and a customized supplement regimen may play a significant and complementary role.

The key to finding effective and appropriate digestive supplements lies in selecting quality and clinically supported products that address your specific concerns. I am a New York City–based registered dietitian specializing in gastroenterology. Below, I review some of the top products that I recommend and use in my clinical practice for common gastrointestinal issues.

When to Consult Your Doctor

If you have recurrent digestive symptoms that are not improving, meeting with your primary care provider or a gastroenterologist is important to determine if medical treatment is necessary. Also, these are general recommendations from my own experience, but it is best to get personalized guidance from a nutritionist. Always consult your healthcare provider before adding any supplement, to ensure it is appropriate and safe for your specific situation. Some supplements can be harmful to those with certain health conditions or may interact with certain prescription medications or other supplements, so seeking expert advice for your circumstances is necessary.

Our Top Picks for the Best Supplements for Gut Health

Best for Constipation

Solgar Magnesium Citrate

$20.85 at Walmart
$13.62Now -53% Off

Pros

  • Convenient form
  • Research-supported benefits
  • Cost-effective
  • Widely available for purchase 

Cons

  • May not be safe if you have kidney or cardiac dysfunction
  • Can interact with some medications 

Key Specs

  • Form: Tablet
  • Supplement type: Laxative
  • Standard dose: Two tablets (400 mg)
  • Dietary considerations: N/A
What digestive health supplement do I recommend the most in my practice? Magnesium. As with the rest of the American adult population, constipation is one of the most common GI conditions I see among my patients.

Magnesium offers an easy, gentle, and clinically researched treatment. Among the many magnesium supplements on the market, Solgar’s product is a great choice because it is cost-effective, easy to find, and comes in 200 milligram (mg) capsules that can be increased gradually to find your sweet spot for relief.

When taken in 400 mg doses or more, magnesium is a laxative that slowly pulls extra water into your bowel to speed up and soften stool.

This particular supplement is magnesium citrate, though other forms exist. Depending on the nature of your constipation, taking magnesium can be a highly effective and simple routine to follow at night to prepare for your morning trip to the bathroom. While dietary fiber and fiber supplements are often the first-line treatment for fecal backup, research has shown that magnesium may be more effective for people with chronic constipation.

The key to managing constipation is working preventatively and proactively, rather than intervening once you are already severely backed up. Magnesium is in certain foods, such green leafy vegetables, nuts, seeds, and whole grains.

However, supplementation can help you increase your magnesium intake, especially if you struggle with digesting certain food groups or can’t get enough of it from food alone. Solgar’s magnesium citrate tablets make it easy to stick to a consistent regimen, but the dosing should be customized (check with your healthcare provider for help with customization). A laxative range is generally 400 mg to 1,000 mg. Don’t take more than that, though, as taking too much magnesium can put you at risk of magnesium toxicity, which can lead to hypotension, respiratory paralysis, and cardiac arrest.

While this product is safe for most people, it cannot be taken with certain medications and may be contraindicated if you have cardiac or kidney dysfunction.

Best for Diarrhea

FiberCon Calcium Polycarbophil Bulk-Forming Laxative

$15.84 at Amazon

Pros

  • Large bulking potential
  • Non-fermentable (non-gassy)
  • Flavorless pills

Cons

  • Larger pills

Key Specs

  • Form: Pill
  • Supplement type: Fiber
  • Standard dose: Two pills
  • Dietary considerations: N/A

Though FiberCon may not be as famous as other fiber supplements, such as psyllium, it’s likely on the way there thanks to its ability to control urgency and diarrhea and aid with constipation effectively.

If you have diarrhea, you may be frustrated to find that most digestive supplements are geared toward treating constipation. FiberCon isn’t entirely different — it primarily promotes the constipation-relieving benefits of its main ingredient, calcium polycarbophil fiber, which absorbs water in the colon and has been shown to normalize bowel movements in people with chronic constipation and irritable bowel syndrome with constipation (IBS-C).

However, FiberCon is a star product in my practice for those with chronic diarrhea, urgency, and irritable bowel syndrome with diarrhea (IBS-D) because it has a particularly large bulking potential (up to 60 times its weight in water), meaning it can add firmness to loose and watery stools.

Many of my patients with chronic diarrhea and urgency have found this product to be a game-changer for their symptoms and quality of life. Plus, FiberCon’s tasteless pills are a convenient and portable regimen that’s easy to incorporate into your daily routine. The dosing for diarrhea may need some customization, such as a split dose or experimenting with timing, so I recommend working with your healthcare provider to figure out what’s best for you.

Best for Irritable Bowel Syndrome

IBgard

$10.97 at Walmart
$12.11Now 9% Off

Pros

  • Reduces cramping and feelings of urgency
  • Best evidence for IBS symptom relief
  • Formulated with peppermint oil

Cons

  • Large pills
  • Not suitable for vegans or vegetarians (contains gelatin)

Key Specs

  • Form: Capsule
  • Type: Peppermint oil
  • Standard dose: Two capsules
  • Dietary considerations: Contains gelatin

IBgard is a star product for helping to manage IBS, thanks to the robust evidence supporting peppermint oil as a safe, well-tolerated, and clinically effective therapy for IBS symptoms. I have seen positive results with this product in my patients with IBS-D and crampy abdominal pain; for some, it has been a life-changing tool.

The research shows that peppermint oil, which contains L-menthol (a compound derived from the herbal plant), can relax smooth muscle in the digestive tract and affect pain sensation and intestinal spasms among patients with all subtypes of IBS.

However, not all peppermint oil products can deliver this result. The specific form in IBgard includes a triple enteric coating that resists stomach acid and releases it in your small intestine to affect pain, urgency, and bloating. Peppermint products without this special coating, such as essential oils and teas, have not been proven to have therapeutic benefits.

Numerous studies point to the benefits of enteric-coated peppermint oil for IBS. In one survey presented at a conference in 2022 and funded by the manufacturer of IBgard, 97 percent of participants with IBS symptoms who used this particular formula reported improved regularity, and 87 percent had reduced meal-related symptoms.

A daily dose of two capsules is recommended for abdominal pain, while up to three doses can be taken for more severe cases. Taking IBgard 30 to 90 minutes before a meal reduces cramping and urgency of food-related symptoms.

While my patients have noted that the capsules are on the larger side, IBgard is a convenient and portable option if you don’t have difficulty swallowing. This product is free of most allergens, including gluten, dairy, and soy, though it does contain gelatin, so it is not suitable for all diets. Some users may experience heartburn, but it is usually mild. If you already have gastroesophageal reflux disease or another related condition, talk with your doctor before starting this supplement.

Best for Constipation and Diarrhea

Citrucel Methylcellulose Fiber Therapy for Irregularity

$16.08 at Amazon
$20.02Now 20% Off

Pros

  • Formulated with a soluble fiber
  • Non-fermentable (non-gassy)
  • Flavorless and odorless

Cons

  • Contains artificial coloring
  • May need a dose of four to six caplets 

Key Specs

  • Form: Caplet
  • Supplement type: Fiber
  • Standard dose: Two to six caplets
  • Dietary donsiderations: Contains artificial dyes

Citrucel’s versatility in aiding with constipation, diarrhea, and IBS makes it a top choice in the fiber supplement category. Unlike other fiber supplements on the market, methylcellulose fiber — the main ingredient in Citrucel — is an entirely soluble fiber type that gels with water in the GI tract and can help with multiple bowel irregularities.

The unique qualities of soluble fiber include adding soft bulk and hydration for constipation, while also being able to absorb liquid to improve loose stools and diarrhea.

Soluble fiber supplementation is also a research-supported therapy for IBS; it has repeatedly been shown to help improve chronic IBS symptoms.

 The American College of Gastroenterology recommends that patients with all IBS subtypes try soluble fiber as an initial therapy for symptom control.

While Citrucel is not meant to be a replacement for getting fiber through your diet, it is a supportive tool that I find to be generally well-tolerated among my patients. Citrucel’s fiber caplets are non-fermentable in the gut, which minimizes side effects such as gas and bloating. The tasteless and odorless caplets are a bonus, as most fiber products come in powdered and flavored forms that can be offensive to some palates (though Citrucel does sell a flavored powder form if you prefer).

While a standard dose of this product may be as few as two caplets, I find most of my patients need at least four to notice a difference. That can be a lot of pills to swallow, and like all fiber products, it requires extra fluid with each dose — but it’s still a simple daily regimen to follow if it helps you. Also, if you cannot tolerate or prefer to avoid dyes, note that this product does contain artificial coloring.

Best for Lactose Intolerance

Nature’s Way Lactose Defense Digestive Enzymes

$13.88 at Amazon
$23.49Now 41% Off

Pros

  • Helps minimize diet restrictions
  • Cost-effective
  • Fast-acting 

Cons

  • Not suitable for vegans or vegetarians (contains gelatin)

Key Specs

  • Form: Capsule
  • Type: Digestive enzyme
  • Standard dose: One to three capsules
  • Dietary considerations: Contains gelatin

Lactose intolerance is the decreased ability to digest lactose, due to the body having too little lactase, the digestive enzyme that breaks down sugar in dairy products. Many of my patients with a lactose intolerance assume that they must avoid all dairy to prevent symptoms such as gas, bloating, and diarrhea — but fortunately, an effective supplement regimen can help get them around that. Nature’s Way Lactose Defense Digestive Enzymes offers one of the most convenient solutions on the market.

Lactase, the main ingredient in this product, has been well-studied for decades. Research has consistently shown that lactase supplementation prevents lactose intolerance symptoms when taken in adequate doses at the start of a meal.

Nature’s Way is a standout product for this purpose because it contains enough of the enzyme to cover a high lactose meal, whereas many products fall short of the research-based recommendation of at least 9,000 to 10,000 lactase units.

 Competing products may contain as few as 3,000 lactase units across multiple capsules, whereas Nature’s Way packs 10,350 lactase units into just one capsule.

While lactase supplementation is a relatively inexpensive way to support the comfortable digestion of various nutritious and delicious dairy foods, this particular formulation is unsuitable for people with certain dietary restrictions, such as those following a vegetarian or vegan diet, as it uses gelatin capsules.

Best for FODMAP Intolerance

Microbiome Labs FODMATE

$64.95 at Amazon

Pros

  • Helps minimize diet restriction
  • Multi-enzyme formula for broad support
  • Fast-acting 

Cons

  • Not widely available for purchase
  • Pricey

Key Specs

  • Form: Capsule
  • Supplement type: Digestive enzyme
  • Standard dose: Two capsules
  • Dietary considerations: N/A
Microbiome Labs FODMATE is a fan favorite among many of my patients who struggle to tolerate FODMAP foods. While not eating FODMAPs — which stands for fermentable oligosaccharides, disaccharides, monosaccharides, and polyols — is an effective method of preventing post-meal symptoms for those with sensitivities, it can be nutritionally and culturally limiting, practically challenging, and simply unenjoyable.

 FODMATE is a convenient tool containing multiple research-supported digestive enzymes to help prevent the gas, bloating, pain, and stool changes that may follow a high-FODMAP meal in some individuals, especially those with IBS.

One of the things that makes FODMATE stand out is its cocktail formula, which combines lactase (for lactose), alpha-galactosidase for galacto-oligosaccharides (a group of carbohydrates made up of oligo-galactose along with glucose and lactose), and glucose isomerase (for fructose) for broad-spectrum support. FODMATE contains two additional enzymes, inulinase and pectinase, to help target foods such as wheat, onion, and garlic — though efficacy data on these enzymes is still limited.

While supplements containing individual FODMAP enzymes have been shown to effectively target some of the common and poorly tolerated FODMAP categories, including lactose (milk sugar in certain dairy), fructose (in certain fruits, vegetables, and honey), and galacto-oligosaccharides (in beans and certain vegetables), most meals contain multiple FODMAP groups.

Supplementing with multiple individual enzymes could be cumbersome and expensive if you react to multiple FODMAP groups, which FODMATE helps to avoid.

FODMATE is fast-acting when taken at the start of a meal, easy to take on the go, and less expensive than taking multiple enzymes at once. The cost of FODMATE may limit frequent use, although it is likely cheaper than taking multiple enzymes. Working with a FODMAP-trained dietitian can help you liberalize your diet so that you can reserve this product for occasional or short-term use.

Best for Histamine Intolerance

Seeking Health Histamine Digest

$38 at Walmart
$32.95Now -15% Off

Pros

  • Helps minimize diet restrictions
  • Convenient form
  • Research-backed benefits

Cons

  • Priced on the higher end
  • Not suitable for vegans or vegetarians (contains pork extract)

Key Specs

  • Form: Capsule
  • Supplement type: Digestive enzyme
  • Standard dose: One capsule
  • Dietary considerations: Contains porcine (pig) extract

Seeking Health Histamine Digest is one of the few supplements on the market designed to improve dietary histamine tolerance, and I have found it to be a helpful tool for my patients with histamine issues. Note that dietary histamine intolerance is not universally recognized by major professional societies or guidelines as a formal diagnosis, and it is an evolving area of research. That said, some patients seem to respond to low-histamine diets.

The main ingredient in Histamine Digest is an enzyme called diamine oxidase (DAO). A deficiency in DAO is a common cause of histamine intolerance. This can be genetic or a side effect of certain medications, such as proton pump inhibitors or over-the-counter NSAIDs (such as ibuprofen or aspirin).

The current theory is that if you take in more histamine from your diet than your body can efficiently break down, a variety of symptoms can occur, including gastrointestinal problems such as diarrhea, bloating, and abdominal pain, as well as itching, hives, headaches, and swelling. High-histamine foods such as vinegar, aged cheese, deli meat, and avocado may trigger symptoms. A low-histamine diet may prevent symptoms, although it can be extremely difficult to follow, since histamines occur in so many foods.

Alongside antihistamine medications, Seeking Health Histamine Digest provides a potential diet-sparing option for those who seem to react to dietary histamine, when used alongside dietitian care. Oral supplementation of DAO has been shown to significantly improve post-meal symptoms, according to a small uncontrolled study of 28 patients over four weeks.

Histamine Digest’s high dose of DAO can be taken 15 minutes before a histamine-rich meal to help with tolerance. The flavorless, one-capsule regimen makes it convenient and portable, although the high price per capsule and limited retail availability may not make it feasible to use regularly. This product also contains a porcine (pig) extract, so it’s not suitable for all diets.

Best for Overall Regularity

Konsyl Organic Daily Psyllium Fiber

$31.48 at Walmart
$21.95Now -43% Off

Pros

  • Non-fermentable (non-gassy)
  • Cost-effective
  • Single ingredient

Cons

  • Less convenient
  • Gels quickly in liquid 

Key Specs

  • Form: Powder
  • Supplement type: Fiber
  • Standard dose: 1 teaspoon
  • Dietary considerations: N/A

Psyllium husk is, without question, the most well-studied and recommended fiber supplement on the market for bowel irregularities. While there are many psyllium products to choose from, Konsyl Organic Daily Psyllium Fiber is a great choice because it is widely available, contains only one ingredient (organic ground psyllium), and comes with a low price tag per serving.

Psyllium husk has long been shown to be a multipurpose gut health tool, with consistently solid evidence supporting it for the treatment of constipation, diarrhea, and overall stool form.

This mixed fiber type, containing mostly soluble and some insoluble fiber, is derived from the seeds of the Plantago ovata plant and ground into a powder that can be taken mixed with water or another beverage. As it moves through your bowels, the soluble aspect of the fiber gels with water to promote hydrated soft stool, while the insoluble component adds some bulk.

With this dynamic profile, it’s often considered a bowel “equalizer,” and this product can be a good starting place if you plan to try out a fiber supplement.
While taking psyllium does not replace the need for fiber in your diet, it comes with additional research-supported benefits, including lowering cholesterol and regulating blood sugar.

Plus, psyllium is not fermentable in the gut, so it is unlikely to cause gas or bloating, and Konsyl’s product is free of all additives, including sugar alcohols, which can worsen GI symptoms.

The downside of this psyllium powder is that it must be mixed into liquid and thickens up rather quickly, so the texture can be off-putting at first. However, you can avoid this by immediately drinking it in cold water or adding it to moist foods such as smoothies and oatmeal as part of your daily bowel regimen.

Comparison Table

Superlative
Form
Supplement Type
Standard Dose
Dietary Considerations
Best for constipation
Tablet
Laxative
2 tablets (400 mg)
N/A
Best for irritable bowel syndrome
Capsule
Peppermint oil
2 capsules
Contains gelatin 
Best for constipation and diarrhea
Caplet
Fiber
2 to 6 caplets
Contains artificial dyes
Best for lactose intolerance
Capsule
Digestive enzyme
1 to 3 capsules
Contains gelatin
Best for FODMAP intolerance 
Capsule
Digestive enzyme
2 capsules
N/A
Best for histamine intolerance 
Capsule
Digestive enzyme
1 capsule
Contains porcine (pig) extract
Best for overall regularity 
Powder
Fiber
1 teaspoon 
N/A

How We Chose the Top Gut Health Supplements

I’m a registered dietitian specializing in gastroenterology and have worked with thousands of patients dealing with chronic digestive symptoms. Staying on top of the latest research on gut health supplements and providing my patients with research-based recommendations for their chronic digestive symptoms is part of my everyday work in gastrointestinal nutrition.

The products listed above were independently chosen based on the clinical evidence supporting their use for specific GI conditions, and they are ones which my physician and dietitian colleagues and I routinely see success with among our patients. Finally, I also took product formulation and tolerance into consideration, as many supplements on the market contain cocktails of ingredients that may not be backed by scientific research and can actually cause additional GI side effects.

You may want to note that the U.S. Food and Drug Administration does not approve supplements before they’re sold, so you can’t necessarily be sure a product is safe or contains the ingredients it lists on the label.

However, you can identify a quality supplement by checking the label to ensure that it is approved by a third-party organization like the U.S. Pharmacopeia (USP), NSF International, or ConsumerLab. These certifications mean the product has undergone unbiased testing for quality and purity.

Who Should Take a Digestive Health Supplement?

A supplement may be a complementary treatment option if you have digestive discomfort that’s not improving, and after seeing your doctor. Common gut health conditions that may benefit from an appropriately matched supplement include:

Chronic diarrhea and IBS-D: Research-based options for chronic loose stools, gut spasms, and urgency may include bulking fiber supplements and enteric-coated peppermint oil.

Chronic constipation and IBS-C: Both laxative and fiber supplements have been clinically shown to improve constipation and constipation-predominant IBS.

Dietary intolerances: Targeted digestive enzyme products, when matched to your specific nutritional intolerance or sensitivity (such as lactose, FODMAPs, or dietary histamine), may prevent diet-related symptoms.

If you plan on taking a supplement for your gut health, clarify that the product matches your symptoms and health needs. Many products make claims but may lack research-based ingredients for particular digestive issues. Careful product reviews and guidance from your healthcare provider can help you create an effective personalized supplement regimen.

Who Should Not Take a Digestive Health Supplement?

Not everyone needs a supplement for good gut health. If you don’t have recurrent digestive symptoms, your gut may already function very well. Adding a supplement without a particular concern is not recommended.

On the other hand, if you have ongoing symptoms and are considering supplementation, ensuring product safety is key. The supplements reviewed above are generally safe for most individuals, when taken appropriately. However, certain conditions may require caution, depending on your medical history and health status. For example:

Fiber supplements may need to be avoided if you have current or previous:

  • Gastrointestinal motility disorder (such as slow intestinal transit, gastroparesis, or esophageal dysmotility)

  • Intestinal blockages (bowel obstruction) or strictures
  • Severe constipation or risk of fecal impaction
  • Esophageal strictures
  • Active intestinal inflammation, including Crohn’s disease, ulcerative colitis, or diverticulitis

  • Medically required fluid restriction

Laxative supplements may need to be avoided if you have current or previous:

  • Intestinal blockages (bowel obstruction)
  • Cardiac disease or dysfunction
  • Kidney disease or dysfunction
  • Medically required fluid restriction
  • Laxative abuse

Additionally, read product labels carefully and speak with your provider if you:

  • Have allergies or celiac disease
  • Are pregnant or breastfeeding
  • Take prescription medications or other supplements

What to Look for When Buying a Digestive Health Supplement

When choosing a supplement, choose products designed for your specific gut health concerns. Many digestive supplements contain ingredients that may not work for your symptoms, so reading labels and checking with your healthcare provider can help you get the most out of a supplement regimen and make sure it’s safe for you.

Supplement form: Supplements come in various forms, such as swallowable capsules and dissolvable powders, which you can choose based on your tolerability and personal preference. If you have difficulty swallowing or an upper motility disorder, you’ll want to choose a tolerable form. The form of the product, however, does not impact its effectiveness.

Product additives: Some products include additives for flavoring, sweetening, or an additional marketed health benefit. Look for simple ingredient lists that target your needs, as some ingredients may cause side effects. This includes sugar alcohols (erythritol, mannitol, xylitol, sorbitol), which have the potential to cause gas, bloating, and diarrhea, as well as prebiotics (fructo-oligsosaccharides, galacto-oligosaccharides, inulin/chicory root fiber), which can cause gas and bloating.

Allergens and dietary restrictions: Screen all supplement ingredients before use if you have allergies or dietary intolerances, such as celiac disease. Reach out to your healthcare provider or the product manufacturer if you are unsure whether an ingredient is safe for you.

Most digestive supplements are vegetarian, though some products may be derived from both plant and animal sources. If you avoid all animal products or specific types, read product labels carefully, as ingredients such as gelatin may be included.

Medication interactions: Some supplements, such as fiber, can interact with medications and reduce or delay their effectiveness. Follow dosage instructions and take them at the recommended intervals, apart from affected medications if necessary.

FAQs

How much is safe to take?

All products have a recommended dosage, but individual regimens can vary depending on your symptoms and health conditions. Speak with your healthcare provider to personalize your regimen, as it may be beneficial to adjust the standard dose, frequency, or timing of a supplement.

The supplements reviewed above are generally safe and well-tolerated for most individuals for intermittent or short-term use, although excessive or incorrect use can cause serious side effects. Follow package directions, such as fluid requirements for fiber or laxative supplements. While most supplements are designed for occasional use, some are safe for daily and long-term use, when guided by your healthcare provider.

The best time to take a digestive supplement depends on what kind of supplement it is. Laxatives, such as the magnesium supplement included in this roundup, may be taken at night to prepare for your morning trip to the bathroom. You should take these supplements with food to avoid getting diarrhea.

Digestive enzymes can be taken with the first bite of a meal, or spaced out over the meal as a split dose if it is a longer meal.

There’s limited research on when to take fiber supplements, though it’s recommended that you take them with meals to help your body absorb them better, and take them at the same time each day to avoid potential side effects.

Some common short term side effects of digestive supplements are gas and bloating, abdominal cramping, constipation, diarrhea, and nausea. They may also interfere with the absorption of certain medications or nutrients. To prevent side effects, you can gradually increase your dose, take the supplement with a full glass of water, or take it with food in certain cases. You can also speak with a doctor about how these supplements can best suit your needs.

Why Trust Everyday Health

We independently investigate and recommend products and services we believe will enrich the lives of our readers and meet their specific needs. You can trust our reviews because we do the legwork for you. Read more about why you can trust us.

Suzie Finkel, MS, RD, CDN

Author
Justin Laube, MD

Justin Laube, MD

Medical Reviewer

Justin Laube, MD, is a board-certified integrative and internal medicine physician, a teacher, and a consultant with extensive expertise in integrative health, medical education, and trauma healing.

He graduated with a bachelor's in biology from the University of Wisconsin and a medical degree from the University of Minnesota Medical School. During medical school, he completed a graduate certificate in integrative therapies and healing practices through the Earl E. Bakken Center for Spirituality & Healing. He completed his three-year residency training in internal medicine at the University of California in Los Angeles on the primary care track and a two-year fellowship in integrative East-West primary care at the UCLA Health Center for East-West Medicine.

He is currently taking a multiyear personal and professional sabbatical to explore the relationship between childhood trauma, disease, and the processes of healing. He is developing a clinical practice for patients with complex trauma, as well as for others going through significant life transitions. He is working on a book distilling the insights from his sabbatical, teaching, and leading retreats on trauma, integrative health, mindfulness, and well-being for health professionals, students, and the community.

Previously, Dr. Laube was an assistant clinical professor at the UCLA Health Center for East-West Medicine and the David Geffen School of Medicine at UCLA, where he provided primary care and integrative East-West medical consultations. As part of the faculty, he completed a medical education fellowship and received a certificate in innovation in curriculum design and evaluation. He was the fellowship director at the Center for East-West Medicine and led courses for physician fellows, residents, and medical students.

Daniel Oakley

Fact-Checker

Daniel Oakley is a journalist, editor, and fact-checker. He has written, edited, taught, and produced media for Dow Jones, S&P Global, IHS Markit, Third Coast Studios Magazine, and 826 National.

Oakley's path has always been a health-and-wellness-focused one. A competitive triathlete and racing fundraiser for the Leukemia and Lymphoma Society, he also spends summer weekends as an ISA-certified surf instructor and Red Cross professional water rescuer with Laru Beya Collective in Rockaway Beach, which helps kids master and delight in their own backyard — the ocean. It has taught Oakley that “optimizing body and mind” flourishes precisely at the wellspring of community.

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Editor

Alexandra Klausner is a freelance health writer and editor with over 10 years of journalism experience. Prior to going freelance, she worked as a reporter and editor at the New York Post for eight years covering everything from health and wellness to features and breaking news. Before that, she covered multiple beats at the Daily Mail Online for three years.

Alexandra graduated from Skidmore College in Saratoga Springs with a bachelor's degree in theater. As a New York City native, she is also a grant-winning playwright, actor, freestyle singer, catchy-hook writer, and podcaster. She loves yoga, 5 Rhythms dance meditation, and running.

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Resources
  1. Heath J et al. Food Trends for 2022 Focus on Gut Health, Mushrooms, and Kelp. Johns Hopkins Center for a Livable Future. January 20, 2022.
  2. Gut Health. HealthFocus International. 2024.
  3. Shreiner AB et al. The Gut Microbiome in Health and in Disease. Current Opinion in Gastroenterology. January 2015.
  4. Xiong R et al. The Role of Gut Microbiota in Anxiety, Depression, and Other Mental Disorders as Well as the Protective Effects of Dietary Components. Nutrients. July 23, 2023.
  5. New Survey Finds Forty Percent of Americans’ Daily Lives Are Disrupted by Digestive Troubles. American Gastroenterological Association. September 14, 2022.
  6. Cozma-Petruţ A et al. Diet in Irritable Bowel Syndrome: What to Recommend, Not What to Forbid to Patients! World Journal of Gastroenterology. June 7, 2017.
  7. Diaz S et al. Constipation. StatPearls. November 12, 2023.
  8. Siegel JD et al. Medical Treatment of Constipation. Clinics in Colon and Rectal Surgery. May 2005.
  9. Mori S et al. A Randomized Double-Blind Placebo-Controlled Trial on the Effect of Magnesium Oxide in Patients With Chronic Constipation. Journal of Neurogastroenterology and Motility. October 30, 2019.
  10. Magnesium. National Institutes of Health: Office of Dietary Supplements. June 2, 2022.
  11. Ajib FA et al. Magnesium Toxicity. StatPearls. November 7, 2022.
  12. Chiba T et al. Colonic Transit, Bowel Movements, Stool Form, and Abdominal Pain in Irritable Bowel Syndrome by Treatments With Calcium Polycarbophil. Hepato-Gastroenterology. September–October 2005.
  13. Cash B. Novel Peppermint Oil Formulation for Dietary Management of Irritable Bowel Syndrome. Gastroenterology & Hepatology. September 2015.
  14. Grigoleit H et al. Peppermint Oil in Irritable Bowel Syndrome. Phytomedicine. August 2, 2005.
  15. Ingrosso MR et al. Systematic Review and Meta-Analysis: Efficacy of Peppermint Oil in Irritable Bowel Syndrome. Alimentary Pharmacology & Therapeutics. September 2022.
  16. Zeitzoff LR et al. Peppermint Oil Is Highly Effective for the Treatment of Adults With IBS: Results From a Self-Reported Survey. Nestle Health Science. 2022.
  17. McRorie JW. Evidence-Based Approach to Fiber Supplements and Clinically Meaningful Health Benefits, Part 2: What to Look for and How to Recommend an Effective Fiber Therapy. Nutrition Today. March 26, 2015.
  18. Brain L et al. ACG Clinical Guideline: Management of Irritable Bowel Syndrome. The American Journal of Gastroenterology. January 2021.
  19. Baijal R et al. Effect of Lactase on Symptoms and Hydrogen Breath Levels in Lactose Intolerance: A Crossover Placebo‐Controlled Study. JGH Open. December 1, 2020.
  20. Sanders SW et al. Effect of a Single Dose of Lactase on Symptoms and Expired Hydrogen After Lactose Challenge in Lactose-Intolerant Subjects. Clinical Pharmacy. June 1992.
  21. Staudacher HM et al. The Low FODMAP Diet: Recent Advances in Understanding Its Mechanisms and Efficacy in IBS. Gut. August 2017.
  22. Tuck CJ et al. Increasing Symptoms in Irritable Bowel Symptoms With Ingestion of Galacto-Oligosaccharides Are Mitigated by α-Galactosidase Treatment. The American Journal of Gastroenterology. January 2018.
  23. Ianiro G et al. Digestive Enzyme Supplementation in Gastrointestinal Diseases. Current Drug Metabolism. February 2016.
  24. Komericki P et al. Oral Xylose Isomerase Decreases Breath Hydrogen Excretion and Improves Gastrointestinal Symptoms in Fructose Malabsorption — a Double‐Blind, Placebo‐Controlled Study. Alimentary Pharmacology & Therapeutics. November 2012.
  25. Hrubisko M et al. Histamine Intolerance — the More We Know the Less We Know. A Review. Nutrients. Junuary 29, 2021.
  26. Schnedl WJ et al. Diamine Oxidase Supplementation Improves Symptoms in Patients With Histamine Intolerance. Food Science and Biotechnology. December 2019.
  27. Tobajas Y et al. Diamine Oxidase Interactions With Anti-Inflammatory and Anti-Migraine Medicines in the Treatment of Migraine. Journal of Clinical Medicine. December 4, 2023.
  28. McRorie JW. Evidence-Based Approach to Fiber Supplements and Clinically Meaningful Health Benefits, Part 1. Nutrition Today. March–April 2019.
  29. Lambeau KV et al. Fiber Supplements and Clinically Proven Health Benefits. Journal of the American Association of Nurse Practitioners. April 2017.
  30. McRorie JW et al. Understanding the Physics of Functional Fibers in the Gastrointestinal Tract: An Evidence-Based Approach to Resolving Enduring Misconceptions About Insoluble and Soluble Fiber. Journal of the Academy of Nutrition and Dietetics. February 2017.
  31. El-Salhy M et al. Dietary Fiber in Irritable Bowel Syndrome (Review). International Journal of Molecular Medicine. July 19, 2017.
  32. Mäkinen KK. Gastrointestinal Disturbances Associated With the Consumption of Sugar Alcohols With Special Consideration of Xylitol: Scientific Review and Instructions for Dentists and Other Health-Care Professionals. International Journal of Dentistry. October 20, 2016.
  33. Questions and Answers on Dietary Supplements. U.S. Food and Drug Administration. February 21, 2024.
  34. Ioniță-Mîndrican CB et al. Therapeutic Benefits and Dietary Restrictions of Fiber Intake: A State of the Art Review. Nutrients. 2022.
  35. Swier RM et al. Diet in Benign Colonic Disorders: A Narrative Review. Clinical Therapeutics. May 2022.
  36. Suresh H et al. Rheological Characteristics of Soluble Fibres During Chemically Simulated Digestion and Their Suitability for Gastroparesis Patients. Nutrients. 2020.
  37. Hashash JG et al. AGA Clinical Practice Update on Diet and Nutritional Therapies in Patients With Inflammatory Bowel Disease: Expert Review. Gastroenterology. March 2024.
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