Gut Health Supplements: Reviews by Dr. Bell

If your digestion is off, almost everything else in the body feels it. Bloating after meals, irregular bowel movements, food sensitivities, low energy after eating, even brain fog and skin issues — they often trace back to what is happening in the gut.

Most gut problems fall into one of a few buckets: not enough stomach acid, not enough digestive enzymes, an imbalanced gut microbiome, inflammation in the gut lining, or sluggish bile flow. The right supplement depends on which bucket you are in. A pancreatic enzyme is great for someone bloating an hour after eating, but it will not help reflux from low stomach acid. A probiotic helps after a course of antibiotics, but it cannot fix a leaky gut on its own.

This page collects every Designs for Health gut health supplement I have reviewed in clinical practice — what it is for, who it tends to help, who should not take it, and how to dose it. You will find enzymes, probiotics, gut-lining repair products, bile and gallbladder support, and binders. Use the reviews to match a product to your symptom picture. If you are not sure where to start, most gut issues benefit from getting basic digestion working first before adding anything more complex.

Featured Reviews

Reviews in this category are being added as Dr. Bell publishes them. Check back soon, or browse the full review library on the homepage.

• AllerGzyme — A targeted protease blend led by DPP-IV, with bromelain, that breaks down the tough gluten, dairy, and soy proteins behind mild-sensitivity bloating — insurance for meals you can't fully control (not for celiac or allergy).
• Aloe/200x — 500 mg of organically grown aloe in a careful low-heat 200:1 concentrate that protects the soothing polysaccharides — gentle support for an irritated gut lining and a calm digestive response.
• Anaerostipes Probiotic — An industry-first single-strain probiotic, Anaerostipes caccae CLB101, that produces butyrate to fuel and protect the gut lining and even converts leftover lactate into more of it — delivered in a delayed-release capsule built for this fragile, oxygen-sensitive organism.
• Betaine HCl — Betaine hydrochloride with pepsin to restore stomach acid for a meal — for post-meal fullness, bloating, and burping from low acid.
• Charcoal Plus Binder — A three-part toxin binder of activated coconut charcoal, G-PUR zeolite, and broken-cell-wall chlorella — broad-spectrum support for the gut's normal clearance of toxins (take well away from meds and nutrients).
• Colon Rx — Magnesium hydroxide that draws water into the bowel plus Triphala, the traditional Ayurvedic fruit blend — gentle, as-needed relief for occasional constipation, without the cramping of stimulant laxatives.
• Complete Commensal Probiotic — Five single-donor keystone strains, including Akkermansia, Faecalibacterium, and Roseburia, delivered with oxygen-free technology to rebuild the gut ecosystem from the foundation — a genuinely first-of-its-kind formula.
• DGL Synergy — Deglycyrrhizinated licorice with soothing botanicals — supports the stomach lining and eases occasional heartburn without blocking acid.
• Digestzymes — Broad-spectrum digestive enzyme blend with betaine HCl, protease, lipase, and amylase plus DPP-IV activity — for bloating, post-meal heaviness, low stomach acid, and trouble digesting protein and fat.
• FloraMyces — A shelf-stable Saccharomyces boulardii probiotic yeast — take it alongside antibiotics or on the road for digestive and immune support.
• GastroMend-HP — Zinc-carnosine, mastic gum, and vitamin U — soothes and supports the stomach lining and a healthy gut environment.
• GI Microb-X — Herbal antimicrobial blend with berberine, sweet wormwood, black walnut, oregano, and bearberry — for SIBO, gut dysbiosis, suspected yeast overgrowth, and persistent IBS-pattern bloating.
• GI Revive Capsules — The capsule form of DFH's gut-lining repair formula — glutamine, DGL, slippery elm, marshmallow, and aloe to soothe the gut.
• GI Revive Powder — Gut-lining repair blend with L-glutamine, slippery elm, marshmallow root, DGL, and zinc carnosine — for leaky gut, NSAID damage, IBS bloating, and post-illness intestinal recovery.
• HistaGest-DAO — 20,000 HDU of the diamine oxidase (DAO) enzyme from porcine kidney in a gastro-resistant tablet — taken before meals to break down food histamine for people who react to aged, fermented, and leftover foods.
• IBSynergy — ibSium yeast fermentate and gut-lining fuel L-glutamine with Benegut perilla and 5-HTP — targets both the gut and the brain-gut axis for IBS-type bloating and stress-driven discomfort.
• L-Glutamine — Clean, free-form L-glutamine (850 mg) — the preferred fuel for the cells lining the gut, for repair after antibiotics, illness, or a stressful stretch.
• Pancreatic Enzyme Complex — A full-strength, delayed-release digestive enzyme — 8,000 USP lipase plus protease, amylase, ox bile, and bromelain — for the post-meal heaviness and bloating that come when the pancreas slows with age.
• Plant Enzyme Digestive Formula — A broad-spectrum, all-plant digestive enzyme blend (vegetarian and vegan) for occasional gas, bloating, and post-meal heaviness — covers protein, fat, and the many carbohydrates in a mixed meal in one capsule.
• PrebioMed XOS — A synbiotic pairing 1 g of gentle, low-dose XOS prebiotic fiber with 10 billion CFU of Bifidobacteria — feeds and seeds the gut at once, with far less bloating than higher-dose inulin or FOS.
• ProbioMed 100 — 100 billion CFU multi-strain shelf-stable probiotic — for antibiotic recovery, IBS bloating, post-illness gut repair, and rebuilding the bacterial community after major disruption.
• ProbioMed 250 — A high-potency 250 billion CFU probiotic across ten fully disclosed strains in delayed-release, moisture-resistant packets — built for a short, intensive reset, classically after a course of antibiotics.
• ProbioMed 50 — 50 billion live organisms per capsule from 10 well-researched, fully disclosed strains, in shelf-stable, moisture-resistant packaging — a real therapeutic-strength probiotic for rebuilding the gut after antibiotics.
• Probiophage DF — A 7-strain probiotic (5 billion CFU) paired with a bacteriophage prebiotic that clears unwanted bacteria so your good ones thrive — dairy-free, in a delayed-release capsule. A smarter pick if ordinary probiotics never did much for you.
• ProbioSpore — Five Bacillus spore strains (about 12.6 billion organisms) wrapped in protective coats that survive heat, time, and stomach acid, then germinate in the gut — a shelf-stable, travel-friendly probiotic that actually arrives alive.
• Probiotic Supreme DF — A 15-billion CFU, eight-strain dairy-free probiotic in a delayed-release caplet built to survive stomach acid — my go-to for post-antibiotic recovery and daily gut maintenance.
• Tri-Butyrin Supreme — CoreBiome tributyrin, 300 mg per softgel, an odor-controlled butyrate postbiotic that directly fuels the cells lining your gut — for gut-barrier support when fiber and probiotics aren't enough.