Vitamin the vitamin. People who eat a varied diet are unlikely to develop a severe primary vitamin deficiency. In contrast, restrictive diets have the potential to cause prolonged vitamin deficits, which may result in often painful and potentially deadly diseases. Well-known human vitamin deficiencies involve thiamine (beriberi), niacin (pellagra), vitamin C (scurvy), and vitamin D (rickets). In much of the developed world, such deficiencies are rare; this is due to (1) an adequate supply of food and (2) the addition of vitamins and minerals to common foods (fortification). In addition to these classical vitamin deficiency diseases, some evidence has also suggested
The Vitamin Shoppe 2015 study, led by Dr. Pieter A. Cohen of Harvard, found that three supplements — JetFuel Superburn, JetFuel T-300 and MX-LS7 — sold at Vitamin Shoppe contained BMPEA. In response, Vitamin Shoppe removed these products from shelves because the safety of these supplements were in question and may not comply with F.D.A. regulations. On January 19, 2007, independent laboratory ConsumerLab.com found 32.8 micrograms of lead per daily serving in Vitamin Shoppe's "Especially for Women" multivitamin. 15.3 micrograms is more than ten times the amount of lead permitted without a warning label in California, the only state to regulate lead in