Vitamin B12


First Used Jan 1976

Current Users 886

Loyalty 32%

Average User Health


577 ratings

5 stars
187 people
4 stars
152 people
3 stars
163 people
2 stars
52 people
1 star
23 people

Popular Concurrent Supplements

Vitamin D
Fish Oil
Folic Acid
Green Tea
Digestive Enzymes

Vitamin B12, also called cobalamin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins. It is normally involved in the metabolism of every cell of the human body, especially affecting DNA synthesis and regulation, but also fatty acid synthesis and energy production. B12 also plays a role in cellular repair, an important role in managing Crohn's disease.

Crohn's disease can damage the ileum, the lower part of the intestine necessary for vitamin B12 absorption. Sometimes portions of the ileum have to be surgically removed. This often leads to B12 deficiencies that can manifest as weakness, fatigue, light-headedness, and megaloblastic anemia (larger-than-normal red blood cells). In extreme cases, it can damage the nerves, resulting in tingling or numbness in fingers and toes and difficulty walking. B12 solid form supplements are regularly prescribed and liquid injections are given in cases where other supplementation is inadequate.
Information from and Wikipedia

Current Users' Health Compared to people not currently on Vitamin B12

The data on this page is from personally submitted user reviews and ratings of treatments, and users who have tracked their health over time while taking these treatments. The data is of a small sample size of users and is subject to biases of side effects of treatments, perceived/expected efficacy, and more. For now, the data should be taken with a grain of salt.