As a rule, younger people need less vitamin D than older people, regardless of sex. This article explains average vitamin D ...

While not a complete guide, the chart below offers a quick overview ... pair vitamin D with a meal containing fat to support optimal absorption. Vitamin D also plays a crucial role in aiding ...

However, not all vitamin C supplements are created equal, especially when it comes to iron absorption. When looking for the best vitamin C supplement for iron absorption, it is crucial to consider ...