Best Supplements for Gut Health (2026)
Probiotic, prebiotic, and gut-supportive supplements recommended by health experts for microbiome diversity, digestion, and gut barrier integrity.
Ranked by expert consensus across 78+ longevity protocols. Last updated March 2026.
Top 9 Supplements for Gut Health
Probiotics (Multi-Strain)
Multi-strain probiotic supplement containing diverse beneficial bacteria to support gut microbiome health. A balanced gut microbiome is linked to improved digestion, immune function, and mental well-being. Look for formulas with clinically studied strains and high CFU counts.
Recommended by 78 experts
Probiotics (Multi-Strain)
supplements
Fermented Foods (Kimchi, Sauerkraut, Kefir)
Naturally fermented foods rich in live beneficial bacteria to support gut microbiome diversity. Regular consumption of kimchi, sauerkraut, and kefir has been shown to reduce markers of systemic inflammation. A Stanford study found fermented foods increased microbial diversity more effectively than a high-fiber diet.
Recommended by 68 experts
Fermented Foods (Kimchi, Sauerkraut, Kefir)
foods
Collagen Peptides
Hydrolyzed collagen peptides that support skin elasticity, joint health, and connective tissue repair. Easily dissolved in hot or cold liquids for convenient daily supplementation.
Recommended by 37 experts
Collagen Peptides
supplements
Bone Broth
Nutrient-dense broth made by simmering animal bones for extended periods. Rich in collagen, glycine, and minerals. Frequently recommended by Dr. Jason Fung as one of the best fasting aids — it provides electrolytes and a small amount of protein to ease hunger during extended fasts without significantly raising insulin.
Recommended by 18 experts
Bone Broth
foods
Glutathione (Liposomal)
Liposomal glutathione supplement for enhanced absorption of the body's master antioxidant. Glutathione plays a critical role in detoxification, immune support, and protecting cells from oxidative stress. Liposomal delivery bypasses digestive breakdown for greater bioavailability.
Glutathione (Liposomal)
supplements
Apple Cider Vinegar
Raw, unfiltered apple cider vinegar with the 'mother' culture. Research suggests it may help reduce blood sugar spikes after meals by slowing gastric emptying. Dr. Jason Fung recommends it as a fasting aid — a tablespoon or two in water can help suppress hunger and stimulate digestion when breaking a fast.
Apple Cider Vinegar
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Bovine Colostrum
Grass-fed bovine colostrum rich in immunoglobulins, lactoferrin, and growth factors. Supports gut barrier integrity, immune function, and recovery from intense exercise. Increasingly popular in longevity circles for its ability to reduce intestinal permeability and modulate inflammation.
Recommended by 2 experts
Bovine Colostrum
supplements
Digestive Enzymes
Digestive enzyme supplements contain a blend of proteases, lipases, and amylases that support the breakdown of proteins, fats, and carbohydrates. They can be especially helpful for individuals with reduced enzyme production due to aging, stress, or digestive conditions, improving nutrient absorption and reducing bloating.
Recommended by 1 expert
Digestive Enzymes
supplements
Triphala
Classical Ayurvedic formula combining three fruits — amla (Emblica officinalis), bibhitaki (Terminalia bellirica), and haritaki (Terminalia chebula) — used for over 2,000 years as a digestive and rejuvenation tonic. Research supports its role in promoting healthy gut motility, microbiome diversity, and gentle detoxification without harsh laxative effects. Considered one of Ayurveda's most versatile rasayana (longevity) preparations.
Triphala
supplements
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Frequently Asked Questions
What is the best supplement for gut health?
A high-quality multi-strain probiotic is the most commonly recommended gut health supplement. Many experts also emphasize fermented foods (kimchi, kefir, sauerkraut) over pills for microbiome diversity, and colostrum for gut barrier repair.
Should I take probiotics every day?
Most experts recommend daily probiotic supplementation or daily fermented food consumption for ongoing gut health support. Consistency is more important than dose — even small amounts of fermented foods daily can significantly improve microbiome diversity.
Does colostrum help with leaky gut?
Bovine colostrum contains immunoglobulins, lactoferrin, and growth factors that research suggests can support gut barrier integrity. Several longevity experts include colostrum in their protocols specifically for gut lining repair.
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