Vitamin D2 Inactive Yeast

Vitamin D2 is a form of vitamin D that is not produced by the body. It is commonly derived from yeast that has been exposed to ultraviolet (UV) light, which activates the vitamin D precursor in the yeast. This process effectively "irradiates" the yeast, creating a source of vitamin D2.

Manufacturers add vitamin D2 inactive yeast as a source of vitamin D, a nutrient important for bone health. It is often used in baked goods like breads and buns to fortify them with this vitamin. It functions as a nutrient, enhancing the nutritional profile of the food.

Vitamin D2 is recognized as safe by the FDA when used as a nutrient. The FDA permits its use as a food additive. JECFA and EFSA have evaluated vitamin D and its derivatives. Typical intakes from fortified foods are generally considered safe and contribute to meeting vitamin D needs. Excessive intake of vitamin D can lead to health issues, but this is unlikely from typical food consumption.