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

RELATED: This Common Sleep Habit Could Raise Heart Attack and Stroke Risk by 26%, New Study Finds. A new study shows that the current RDA for vitamin B12 may not protect against stroke and dementia.

Knowing which vitamins you need can be pretty confusing. Here, experts detail which vitamins you should take daily and how to ...

One of the best ways to maximize absorption is through proper gut health. Before trying supplements, it's important that you ...

Vitamin B12 is crucial for energy, brain function, red blood cell production, and nerve health.Vitamin B12 is essential for your body to function properly, and deficiency can lead to serious ...

Vitamin B-complex supplements include all of the essential B vitamins in one pill. Some of these supplements contain 100% of the recommended daily allowance (RDA) of every B vitamin. Others ...

While vitamin B12 might not be as buzzy as calcium or an immediately recognizable household name like Vitamin C or D, it's just as important for your health—and particularly your brain health.

This table shows the vitamin requirements for females ages 9 to 50 years as well as requirements for some minerals. Fields marked with an asterisk (*) represent an AI rather than an RDA.