#9. Vitamin B12
Vitamin B12 is important to the production of energy in the body. Eliminating animal products from the diet, and aging, as well as certain diseases that attack the GI tract, may contribute to lower levels of B12 in the body which results in weakness and fatigue.
Vitamin B12 and other B vitamins convert the food you eat into energy for cells to function normally. Vitamin B12 occurs naturally in foods such as fish, dairy products, and animal protein such as meat. Also, many foods are often fortified with vitamin B12.
There is no evidence to prove that B12 supplementation benefits people who already have an adequate amount of this vitamin in their bodies.
However, supplementation benefits people who do not adequately absorb the vitamins, such as those with GI disorders like celiac disease and Crohn’s disease.
Aging adults do not produce enough proteins and stomach acids which are needed for proper absorption of vitamin B12. Vegans and vegetarians who do not consume foods containing vitamin B12 ( such as animal products), will also benefit from B12 supplementation.