B12 supplements can come in a variety of forms — spray, liquid, capsule — which can make it difficult to know what to buy.

Generally, taking your vitamin B12 consistently is most important, but there is a time of day you might want to prioritize ...

Your doctor will give you the right dosage of vitamin B12 supplement, especially if you will inject it. Taking too much can cause side effects like nausea, headache, dizziness, and, in some cases ...

Another source of B12 for vegetarians is eggs. One large, hard-boiled egg contains 0.5 mcg of vitamin B12, or 19% of your DV. Eggs are also high in protein, another nutrient that may be lacking in ...

The recommended daily intake of vitamin B12 varies by age and health condition. For most adults, the requirement is 2.4 micrograms (mcg) per day. Pregnant women need 2.6 mcg, while breastfeeding ...

However, when considering shots, you'll want to consider a few things. One, they'll be more expensive than vitamin B12 ...

But research has not shown that any form of supplemental vitamin B12 is better than others, according to the NIH Office of Dietary Supplements. Further, notes the NIH, some come in doses much higher ...