Did you know? Salmon ranks as one of the top choices for fulfilling your daily vitamin D requirement, with 360 international units (IU) per a 3.5 oz. serving (as compared to just 100 IU in an 8 oz. glass of vitamin D-fortified milk and orange juice). Vitamin D, a fat-soluble vitamin, is one of the key ingredients in bone health and strength. Without it, bones cannot absorb calcium. According to the recent Nurses' Health Study II, of the 116,646 women studied, those who got more than 500 IU of vitamin D a day had a 40% lower risk of hip fracture than those who got less vitamin D. Additionally, many experts believe that the current goal of 200 IU for young women falls short and that the appropriate level is in fact closer to 400 IU.