The 5 Best Vitamins for Gut Health

A healthy immune system starts with your gut, so make sure to take care of it! Hippocrates once said, “all disease starts in the gut” and this still rings true today.

The microbiome of your digestive system is made up of trillions of microorganisms that live in your intestines. These microorganisms are involved in many bodily functions including digestion, metabolism, weight management, and immunity functions. Some research suggests that these microorganisms even play an important role in brain function and mental health.

There are many foods that you can eat to help nourish your gut. Fermented or cultured foods are a source of healthy bacteria, while fiber provides food for the helpful microorganisms in your gut. Here are just a few foods that support gut health:

  • Kombucha
  • Yogurt or kefir
  • Bone broth
  • Fermented foods like miso, kimchi, or pickled vegetables
  • Low-Fructose fruits and vegetables like pineapples or leafy greens
  • Fiber-rich foods like chia seeds or bananas
  • Healthy fats

We also recommend that you make the following changes to your lifestyle to boost your gut health:

  • Try to limit stress levels
  • Drink plenty of water
  • Make sure to exercise daily
  • Track your sleeping habits
  • Take a probiotic daily

While there are many foods that are good for your gut health, there are also plenty of vitamins that have been shown to support, heal, and protect your gut. Take a look at these 5 vitamins below that are good for your gut health:

1. B Vitamins

B vitamins can be found in fatty fish, dairy products, leafy greens, and meat. They aid the body in creating red blood cells1 and help generate energy from the food you eat. The digestive tract relies on B vitamins in order to function properly and ensures that your stomach and intestines continue to work as they should.

2. Iron

Iron supports your gut’s good bacteria. In fact, a study found that supplementing with iron may increase the anti-inflammatory bacterial metabolite and enhance the number of good gut flora2.

3. Vitamin C

Vitamin C is perhaps best known for being an immune booster because of its antioxidant properties. However, it is these antioxidants that aid the body’s digestion through the absorption of iron3.

4. Vitamin D

In 2015, a study on gut health found that low levels of vitamin D were linked to a reduced risk of colon cancer4. Additionally, vitamin D can also help the body absorb calcium as well as support muscle, nerve and immune system function.

5. Magnesium

Magnesium is vital to our overall health, but it’s particularly important to the gut as it minimizes inflammation. When your body is deficient of magnesium, it can be harmful to good gut bacteria as they become more vulnerable to harm5.



1. U.S. National Library of Medicine: B Vitamins

2. Gut Microbiota and Iron: The Crucial Actors in Health and Disease, 2018 Dec; 11(4): 98

3. U.S. National Library of Medicine: Vitamin C

4. Circulating Vitamin D and Colorectal Cancer Risk: An International Pooling Project of 17 Cohorts, 14 June 2018

5. Magnesium in Prevention and Therapy, 2015 Sep 23;7(9):8199-226. doi: 10.3390/nu7095388