Best Supplements for Digestive Comfort & Gut Health

Healthy digestion depends on an intact intestinal barrier, a balanced gut microbiome, and comfortable gastrointestinal motility. Research suggests that L-Glutamine, probiotics, and Ginger each support distinct aspects of digestive comfort and gut function. FormulaForge ranks every ingredient by the bioavailability of its available forms so you can select the most effective options for your routine.

Updated 2026 · Reviewed by Dr. Brennan Commerford, D.C.

Frequently Asked Questions

What supplements may support digestive comfort and gut health?

L-Glutamine, probiotic strains (such as Lactobacillus and Bifidobacterium species), and Ginger are among the most studied ingredients for supporting healthy digestion and gut function. These supplements are not intended to diagnose, treat, cure, or prevent IBS, IBD, or any digestive disease. Consult a qualified healthcare provider for persistent gastrointestinal symptoms.

Does L-glutamine support gut barrier function?

L-Glutamine is the primary fuel source for the cells lining the intestine and is studied for its role in supporting intestinal barrier integrity. A systematic review and meta-analysis of clinical trials (PMID 39397201) examined glutamine supplementation and gut permeability in adults. Research suggests it may support a healthy intestinal barrier. These are structure/function observations — L-glutamine is not a treatment for any condition.

Do probiotics support digestive comfort?

Probiotics are live beneficial microorganisms studied for supporting a balanced gut microbiome and digestive comfort. A systematic review with meta-analysis (Ford et al. 2018; PMID 30294792) examined the efficacy of probiotics and related interventions on gastrointestinal symptoms. Research suggests certain strains may support healthy digestion. These are structure/function claims; effects are strain-specific.

How does ginger support digestion?

Ginger (Zingiber officinale) has a long traditional use for supporting digestive comfort. A systematic review of randomized clinical trials (PMID 36501010) examined ginger's effect on nausea and vomiting. Research suggests ginger may support comfortable digestion and healthy gastrointestinal motility. These are structure/function claims — ginger is not a treatment for any digestive disease.