B12 supplements can come in a variety of forms — spray, liquid, capsule — which can make it difficult to know what to buy. That’s why we asked registered dietitians which ones they’d actually ...

The best time to take vitamin B12 depends on why you are taking it and in what form. Learn the best timing for your needs.

One of the best ways to maximize absorption is through proper gut health. Before trying supplements, it's important that you don't experience regular diarrhea, constipation or other issues, which can ...

2.8 mcg per day For those who are deficient, doctors may recommend higher doses through supplements or injections. Vitamin B12 is produced by certain microorganisms, that live in the gut ...

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 ...

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.