Vegan Vitamin D2

Vitamin D2, also known as ergocalciferol, is a form of vitamin D that is not produced by the human body. It is synthesized from ergosterol, a compound found in yeast and fungi, when exposed to ultraviolet (UV) light. This process is often used to create vegan-friendly vitamin D supplements and fortified foods.

Manufacturers add vitamin D2 to foods to increase their nutritional value, particularly for individuals who may not get enough sunlight or dietary vitamin D. It is commonly found in plant-based milk alternatives, cereals, and some juices. As a nutrient, it helps the body absorb calcium and phosphorus, which are essential for bone health.

Vitamin D2 is permitted by the FDA as a food additive and is generally recognized as safe (GRAS) when used as intended. The National Academies have established an upper intake level (UL) for vitamin D. Both the Joint FAO/WHO Expert Committee on Food Additives (JECFA) and the European Food Safety Authority (EFSA) have evaluated vitamin D2. Typical intakes from fortified foods are unlikely to cause adverse effects, but very high doses can lead to hypercalcemia. Evidence does not suggest a link between typical dietary intake and adverse health outcomes.