Which is more important, Vitamin D or Vitamin C? Both! Both vitamins are very good for you! However, When it comes to your immune system Vitamin D is very important! In today's podcast, Dr.Martin discusses the differences between Vitamins C and D. He also talks about what happens when our vitamin D levels are too low, how much you should take per day, and the connection between vitamin D and insulin. He'll also answer the questions about getting too much Vitamin D! This is one episode no one should miss!