Copper absorption as affected by supplemental calcium, magnesium, manganese, selenium and potassium
Kies, C.; Harms, J.M.
Advances in Experimental Medicine and Biology 258: 45-58
1989
ISSN/ISBN: 0065-2598 PMID: 2697140 Document Number: 328348
In trials lasting 28 days persons were given a basal diet without or with one of the test mineral supplements: calcium 532 mg (basal diet 925 mg) daily; magnesium 200 mg (basal 230 mg) daily; manganese 40 mg daily; selenium 50 micro g daily; potassium 920 mg daily. Copper in the diet was 1.05 to 1.38 mg daily. Ca supplement decreased Cu recovered in faeces to give greater Cu retention. When Mg was given Cu losses in faeces increased and a slight negative Ca balance developed. Mn supplement seemed to have no effect on Cu balance. Se increased Cu losses in faeces and increased recoveries of dietary Cu in faeces. K supplement resulted in a slight decrease in Cu in faeces.