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Top 13 Probiotic Foods

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Thirteen fermented staples make up Dr. Josh Axe’s playbook for rebuilding gut bacteria the natural way.

Dr. Josh Axe built his latest dietary breakdown around a single premise: most people are running a gut microbiome shortage, and the fix sits in the fermented foods aisle rather than a supplement bottle. His video and companion content lay out the top probiotic foods worth working into daily meals, tying each one to specific bacterial strains and the digestive conditions they’re meant to support.

• Axe defines probiotics as live, beneficial bacteria and yeasts that populate the gastrointestinal tract and names leaky gut, IBS, Crohn’s disease, diverticulitis, and ulcerative colitis as the conditions a balanced microbiome helps address.
• His framework centers on specific strains — Lactobacillus (including L. bulgaricus and L. acidophilus), Bifidobacterium, and the beneficial yeast Saccharomyces boulardii.
• Yogurt leads the list, but Axe stresses picking varieties with active, live cultures rather than pasteurized or heavily sweetened tubs that have killed off the bacteria that make yogurt worth eating in the first place.

The Bacterial Strains Behind the Recommendations

Axe doesn’t treat “probiotic” as a vague marketing word — he anchors the entire list to named strains. Lactobacillus bulgaricus and Lactobacillus acidophilus show up repeatedly across his fermented food picks, alongside Bifidobacterium species that colonize the large intestine. He also flags Saccharomyces boulardii, a beneficial yeast rather than a bacterium, as a strain worth seeking out specifically for its role in crowding out harmful pathogens in the gut.

That specificity matters because it’s the throughline connecting every food on his list back to digestive conditions like leaky gut and IBS. Readers looking to build out a broader nutrient-dense plate alongside these picks can cross-reference 8 Foods Men Should Eat Everyday (Science-Based) for other daily staples Axe and similar health educators point to.

Yogurt and Kefir Top the List

Traditional yogurt sits at the top of Axe’s rankings, but with a caveat: the health benefit disappears if the product has been pasteurized after culturing or loaded with added sugar. He points readers toward labels that specifically list live, active cultures.

Kefir follows as the drinkable alternative, prized in his breakdown for its unusually high bacterial diversity compared to standard yogurt. As a fermented milk product, kefir carries a wider spread of Lactobacillus and Bifidobacterium strains in a single serving than most other dairy-based options on the list.

Lactobacillus, Bifidobacterium, and the yeast Saccharomyces boulardii anchor nearly every food on Axe’s list — the strains, not just the “probiotic” label, are the point.

Cultured Vegetables, Kombucha, and Fermented Soy

Beyond dairy, Axe’s list runs through cultured vegetables like sauerkraut and kimchi, both fermented long enough to build up dense colonies of beneficial bacteria. Kombucha — fermented black or green tea — makes the cut as well, credited with its own bacterial and yeast culture developed during fermentation.

Fermented soy gets three separate entries: miso, natto, and tempeh, each produced through a different fermentation process but landing in the same probiotic category. Naturally brined pickles and raw cheeses round out the list, chosen specifically because true brining and raw aging preserve live cultures that pasteurization would otherwise wipe out.

Importance of the Gut Lining

Axe’s underlying argument is that these fermented foods do more than aid digestion in the moment — they supply the live microorganisms needed to strengthen the gut lining itself and keep harmful pathogens from gaining ground. That’s the mechanism he ties back to leaky gut and inflammatory conditions like ulcerative colitis and diverticulitis throughout the video.

Anyone building a broader anti-inflammatory routine alongside these picks might also look at The Golden Spice: A Closer Look at Turmeric, another staple frequently paired with fermented foods in gut-health-focused eating plans.

Axe’s closing point in the video is practical, not theoretical: rotate through a few of these thirteen foods rather than relying on one, since variety in strains — Lactobacillus one day, Bifidobacterium-rich kefir the next, Saccharomyces boulardii via kombucha after that — does more for a struggling gut than repeating the same yogurt cup every morning.