Manetti advises, "Supplements are sometimes necessary to maintain optimal levels of vitamin D. Although these can be purchased over the counter, even at a very high dosage, it is best to as your ...

There are two types of vitamin D supplements available for over-the-counter purchase (vitamin D2 and vitamin D3). Vitamin D3 is the type that most experts believe should be utilized in clinical ...

Vitamin D2 aids calcium absorption, strengthens bones, and supports immunity. Found in plants, it's used to treat vitamin D ...

known as a minimal erythemal dose) is equivalent to ingesting approximately 20,000 IU of vitamin D. Thus exposure of arms (18% body surface) to sunlight between 11 a.m. and 2 p.m. for an amount of ...

The range of studies for non-prediabetic subjects have either used relatively small doses of vitamin D or have only been run over the short-term. There has been little in the way of research data ...

The U.S. Recommended Dietary Allowance for Vitamin D is 600 to 800 International Units (IU) per day for most adults. However, the research team found that these amounts are often not enough. In some ...