Chromium

Question 1

what forms is chromium found in

Answer 1

Cr2- and Cr3+

Question 2

what are some general sources of chromium

Answer 2

meats, grains, vegetables, fruits

Question 3

how is chromium digested

Answer 3

acidic acid in stomach releases chromium from food.

Question 4

where is chromium absorbed

Answer 4

jejunum

Question 5

how is chromium absorbed

Answer 5

mechanism not known, hypothesize passive diffusion by carrier mediated transporters or endocytosis

Question 6

how much chromium is absorbed

Answer 6

0.4-2.5%

Question 7

what enhances chromium absorption

Answer 7

chealators: phyenylalanine, methionine, histidine, picolinic acid, lipophilic, vitamin C

Question 8

what inhibits absorption of chromium

Answer 8

neutral or alkaline environments, antaacids, proton pump inhibits, H2 receptor blockers, phytic acid

Question 9

how is chromium transported

Answer 9

binds to transferrin, when that is unavaliable, moves to albumin. At high concentrations, utilizes globulins and lipoproteins