7-Dehydrocholesterol has significant absorption of UV light at the lowest wavelengths of light found in sunlight (290-310 nm). Hence the need for full-spectrum lamps to emit UV-B radiation (UV-B light is defined here to be light between 290-315 NM).
In rare cases some vegans might not get enough fat or calories to produce adequate amounts of steroid hormones (which are produced from cholesterol). Two studies have shown vegans to have sex hormones on par with meat-eaters (1, 2), but one report showed vegan women to have lower levels of estrogen (3).
Being vegan doesnât have many benefits over a WFPB diet. The one benefit of being a vegan over WFPB is that food tends to be easier to find. Restaurants and grocery stores offer more vegan food options than ever before. However, the main downfall of a vegan diet is health. Itâs easy to be unhealthy on a vegan diet.