It may surprise you, but according to the U.S. Department of Health, between 60-70 million Americans have one or more gastrointestinal (GI) disorders or disorders. And with more research on how much your gut health affects your overall health, you may be looking for ways to improve it.

In addition to increasing your fiber by making dietary adjustments or avoiding unhealthy lifestyle habits, you may be interested in a supplement that can provide extra support to your digestive system.

But not all supplements are created equal. When buying supplements, it is important to find a reputable brand that puts an emphasis on testing.

“Some factors that can help you determine a brand’s legitimacy are the company’s commitment to conducting clinical research and whether the company has received independent third-party certifications, such as NSF,” says Keri Gans, MS, RDN, CDN, registered dietitian nutritionist in New York City. “NSF-certified tests for harmful levels of pollutants and confirm that the dietary supplement contains the ingredients listed on the label.”

Are you looking for some of the best nutritional supplements to help you improve your digestive health? Here are the best nutritional supplements for digestion. Read on, and to learn more about how to eat healthily, don’t miss out on the 7 Healthiest Foods You Should Eat Right Now.


First of all, you should know exactly what probiotics are.

“Probiotics are living microorganisms that can help rebalance your microbiome and can be thought of as the ‘workers’ in our gut,” says Gans.

And they benefit your gut in many ways.

“Probiotics have been shown to help digestion, support the immune system, reduce inflammation and a lot more,” says Bonnie Taub-Dix, MA, RDN, CDN, Author of Read It Before You Eat It — Take You From Label to Table.

Additions to try out:

Pendulum glucose control probiotic ($ 195)

IdealLean probiotic for the night ($ 17.99)

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“Postbiotics are the metabolites that are formed by beneficial microorganisms, so the end result,” says Gans. “The formation of metabolites (postbiotics) is one of the main results of the metabolism of prebiotics (specialized plant fibers that are the ‘fuel’, also known as food, for probiotics) and probiotics. Postbiotics can support both gut health and immunity.”

Research on postbiotics has shown that they can help adjust your microbiome and support gut health.

Additions to try out:

Healthy Origins Natural EpiCor ($ 28.97)

Gut Connection by Country Life ($ 25.50)

Omega 3Shutterstock

“Omega-3s like EPA and DHA have been shown to have lifetime benefits,” says Sylvia E. Klinger, DBA, MS, RD, CPT, registered dieter and owner of Hispanic Food Communications. “In particular, omega-3s can be beneficial for those who have constipation as they act as a lubricant in the intestines as well as an anti-inflammatory agent.”

Additions to try out:

Nordic Naturals Ultimate Omega, Lemon Flavor ($ 35.49)

Omega-3 Wild Alaska Fish Oil ($ 21.80)


L-glutamine is also a great gut health supplement. Specifically, it has been found to increase immune cell activity and reduce inflammation in the gut, notes a registered dietitian Andrea Grange, RD, with IdealFit.

Additions to try out:

The Vitamin Shoppe L-Glutamine Powder ($ 12.99)

IdealLean L-Glutamine ($ 8.99)

Vitamin DShutterstock

“Vitamin D not only helps maintain strong bones and teeth, supports the immune system, nervous system, lung health and cardiovascular health, but is also good for the digestive system,” says Klinger.

Taub-Dix adds, “Vitamin D plays an important role in keeping your digestive tract healthy as it has been shown to increase the microbes in your intestines and reduce inflammation in those with digestive problems.”

Studies have shown that it is especially useful for people with irritable bowel syndrome as it increases bacterial abundance, which in turn helps relieve symptoms of IBS.

Additions to try out:

Nature Made Vitamin D3 ($ 13.97)

Vitamin D3-Vitafusion ($ 9.89)

vitamin BShutterstock

“B-complex refers to not just one vitamin, but MANY vitamins that all fit into the ‘B-complex’ category (e.g. B1, B2, B3, B6, B12, and biotin),” says Grange. “Different B vitamins play different roles in the intestine, but many B vitamins help our intestines to properly break down and utilize the food we eat.”

Additions to try out:

Vthrive Bioactive B Complex ($ 22.99)

IdealFit B Complex ($ 9.99)

Nature Made Super B Energy Complex ($ 9.34)

Vitamin C SupplementsShutterstock

“Most people don’t think about how digestion starts in the mouth,” notes Taub-Dix. “Vitamin C supports healthy gums and teeth, and also improves the absorption of iron, another essential nutrient for supporting intestinal health.”

Additions to try out:

Puritan’s Pride Vitamin C with Bioflavonoids ($ 7.49)

Nature’s Bounty Vitamin C ($ 7.74)

Magnesium capsulesShutterstock

“Magnesium is the fourth most abundant mineral in our body,” says Taub-Dix. “Magnesium improves digestion because it plays its role as an enzyme to metabolize protein, carbohydrates, and fat.”

She notes that various magnesium supplements can also be used to treat digestive ailments such as heartburn, indigestion, and constipation.

Additions to try out:

Naturally Made Magnesium Citrate ($ 16.99)

The Vitamin Shoppe Magnesium Glycinate ($ 14.99)

Vthrive Magnesium Relax Powder (29.99)

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