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.
Rather than slipping easily into the bloodstream like most water-soluble vitamins, fat-soluble vitamins gain entry to the blood via lymph channels in the intestinal wall. Many fat-soluble vitamins travel through the body only under escort by proteins that act as carriers. The following describes how fat-soluble vitamins are absorbed by the body: Food containing fat-soluble vitamins is ingested. The food is digested by stomach acid and then travels to the small intestine, where it is digested further. Bile is needed for the absorption of fat-soluble vitamins. This substance, which is produced in the liver, flows into the small intestine, where it breaks down fats. Nutrients are then absorbed through the wall of the small intestine. Upon absorption, the fat-soluble vitamins enter the lymph vessels before making their way into the bloodstream. In most cases, fat-soluble vitamins must be coupled with a protein in order to travel through the body. These vitamins are used throughout the body, but excesses are stored in the liver and fat tissues. As additional amounts of these vitamins are needed, your body taps into the reserves, releasing them into the bloodstream from the liver. Helpful? 1 person found this helpful.