There’s no “best” time to take vitamin C supplements. It’s a water-soluble vitamin that you can take at any time, with or without food. But here are some considerations.

The recommended intake of vitamin B12 for people older than 14 is 2.4 micrograms a day. People who follow a vegetarian or vegan diet may need vitamin B12 supplements. Vitamin B12 injections can treat ...

Medically reviewed by Patricia Mikula, PharmD Key Takeaways Tablets contain the most accurate dose of vitamin C and are the most shelf-stable.  Powders offer more flexible dosing but can be harsh on ...

Vitamin A is an essential nutrient that plays a role in many bodily functions. The fat-soluble vitamin is important for our vision, skin, immune system and more. Also known as retinol, vitamin A is a ...

Vitamin D3, a form of vitamin D that we get from certain foods and exposure to sunlight, is an essential nutrient that plays a role in many bodily functions. This fat-soluble vitamin helps the body ...