vitamin D What is a reasonable vitamin D level? 6:44 AM 0 The figure and table below are from Vieth (1999); one of the most widely cited articles on vitamin D. The figure shows the gradual increase ...
vitamin D Vitamin D levels: Sunlight, age, and toxicity 3:00 PM 0 Calcidiol is a pre-hormone that is produced based on vitamin D3 in the liver. Blood concentration of calcidiol is considered to be a reliabl...
nutrition How long does it take for a food-related trait to evolve? 10:56 AM 0 Often in discussions about Paleolithic nutrition, and books on the subject, we see speculations about how long it would take for a populatio...