Vitamin A content: A 3-ounce cut of raw bluefin tuna contains 557 micrograms RAE, which provides about 60-80% of your daily ...

Vitamin A is a fat-soluble vitamin that's stored in the liver. Vitamin A is important for your baby's embryonic growth, ...

Vitamin D is the most important vitamin to keep tabs on during the winter. “As sunlight is weaker and in short supply during ...

In the summertime, vitamin D levels might not be much of a concern for many runners, considering the time we spend exercising ...