Matt Soniak. filed under: Big Questions, Origins. Like us on Facebook. If youâve ever seen the World Health Organization or American Medical Association logo, or the âstar of lifeâ on the side of an ambulance, you might have wondered what a snake wrapped around a stick has to do with those who fix what ails us.Well, that stick is the asklepian, or rod of Asclepius.iled under: Big Questions, Origins. Like us on Facebook. If youâve ever seen the World Health Organization or American Medical Association logo, or the âstar of lifeâ on the side of an ambulance, you might have wondered what a snake wrapped around a stick has to do with those who fix what ails us.
For the most part, the B vitamins are absorbed directly into the bloodstream in your stomach or small intestines. The exception is vitamin B-12, which must be bound to something called intrinsic factor for absorption.
1 The food is digested by stomach acid and then travels to the small intestine, where it is digested further. 2  Bile is needed for the absorption of fat-soluble vitamins. 3  This substance, which is produced in the liver, flows into the small intestine, where it breaks down fats. Upon absorption, the fat-soluble vitamins enter the lymph vessels before making their way into the bloodstream. 2  In most cases, fat-soluble vitamins must be coupled with a protein in order to travel through the body.