Vitamin B12 is mainly found in animal foods, so vegetarians, vegans and those who fast frequently are at increased risk of deficiency in this vitamin and need a supplement. Nutrinous' vitamin B12 dietary supplement provides 1000μg per tablet to the body, a vitamin essential because it contributes to the normal functioning of the metabolism, nervous and immune systems. Taking vitamin B12 with a supplement is particularly important for the elderly, who are vulnerable to B12 deficiencies due to reduced secretion of the "intrinsic factor", a factor necessary for the absorption of vitamin B12. Stomach acids are necessary for the release of vitamin B12 from food, so those taking antacid medications, such as proton pump inhibitors, should seriously consider taking a B12 supplement.
