Vitamin B

Vitamin B-12 is vital to producing red blood cells, maintaining neurological function and metabolizing all the cells in your body. It’s only found in the protein of animal products, such as eggs, red meat and other dairy products. Therefore, vegans and some vegetarians are at risk of B-12 deficiency. The elderly and people who have had weight-loss surgery may also benefit from monthly B-12 shots. The average adult needs 2.4 micrograms of the vitamin a day. It’s rare for a young person to be deficient, but old people might be mildly low on the vitamin.