Absorption of vitamins

ABSORPTION OF VITAMINS

Absorption of vitamins

  • Fat soluble vitamins (A, D, E, K) pass through the intestinal mucosa by passive diffusion.
  • Water soluble vitamins (except B12) are also absorbed by passive diffusion but may also be transported actively.
  • Vitamin B12  requires an intrinsic factor, secreted by the gastric glands of the stomach, for its absorption by and active transport process. 
Last modified: Thursday, 15 September 2011, 4:58 AM