Vitamized Fat Melting
How It Melts Fat: Study after study shows that vitamin D helps to ensure body cells listen and respond to insulin, a hormone secreted from your pancreas. One of its jobs is to help glucose get into body cells, which burn glucose for energy. How well insulin pushes glucose into cells is called "insulin sensitivity." The more sensitive your cells are to insulin, the better. The less sensitive they are to insulin, the more likely the calories you eat will end up in your fat cells.
When levels of D are low, levels of parathyroid hormone (PTH) rise. Higher than normal levels of PTH trigger a series of reactions that eventually lead to fat cells converting sugar into fat and hoarding fat rather than releasing it to be burned, explains Michael B. Zemel, PhD, director of the Nutrition Institute at the University of Tennessee in Knoxville.
A lack of vitamin D may also interfere with leptin, a hormone that signals your brain to stop eating. Your body doesn't know when it's full, so you continue to eat.