Derrick Lonsdale

Derrick Lonsdale (born 1924) is a pediatrician and researcher into the benefits of certain nutrients in preventing disease and psychotic behavior. He is a Fellow of the American College of Nutrition (FACN), and also a Fellow of the American College for Advancement in Medicine (FACAM)

According to Lonsdale, thiamine is a special vitamin because as the cause of beriberi it is one of only four vitamins associated with a named pandemic deficiency disease. Of these four vitamins, only thiamine requires transport proteins to diffuse throughout the body. A thiamine derivative called TTFD is a thiamine precursor that does not require transport proteins to freely diffuse. Provided by Wikipedia