Beef liver is the richest source of vitamin B12, with 85 mcg per 100 grams. It is also a good protein, iron, and vitamin A source. Clams are another excellent source of vitamin B12, with 63 mcg per ...

This product from Nordic Naturals provides 250 mcg of vitamin B12 in each capsule, along with an assortment of other essential B vitamins like niacin, folate, and biotin. Opting for a B complex ...

Carlyle Vitamin B12 100 mcg is a good option. As we noted earlier, the risk of toxicity with vitamin B12 is low because it’s water soluble. That being said, if you’re only slightly deficient ...

For example, researchers found a single serving of beef liver can provide 71 mcg of vitamin B12, which is approximately 30 times the DV. Whereas a 3 ounce serving of sirloin only contained 1.4 mcg.

Pregnant women need 2.6 mcg of vitamin B12 a day and breastfeeding women need 2.8 mcg. Most people are able to get enough vitamin B12 from their diets, Allen says, so widespread supplementation ...