Vitamin B-12, also known as cobalamin, is water-soluble and derives its red pigment from the cobalt molecule. The parietal cells of your stomach produce intrinsic factor which is needed for the proper absorption of cobalamin. The intrinsic factor binds itself to the B-12 and travels down to the ileum portion or your small intestines and is actively transported into the blood. After absorption, B-12 is stored in the liver for up to 3 years, whereas the excess is excreted in the urine. The body needs B-12 to make blood cells and to maintain a healthy nervous system.
The best animal sources for B-12 are beef liver, clams, salmon steak, lamb, lobster, beef, tuna, cheese, milk, halibut, eggs and chicken. The best non-animal sources include nori, wakame, kombu, arame, super blue green algae, chlorella and spirulina. However, there is debate over the reliability of animal and non-animal sources of Vitamin B-12.
Vitamin B-12 is better absorbed via injection because it goes directly into the blood stream. There are also different types of B-12 and the best type is methylcobalamin.
Check your Vitamin B-12 levels today!