Calcium absorption and excretion in the gut in acromegaly

Abstract

Summary In twenty patients with active acromegaly, twenty‐five measurements of radiocalcium absorption and fourteen measurements of gut excretion were made. Calcium absorption in this group was greater than normal, and was positively correlated with both the serum calcium level and the urine calcium output. Endogenous faecal calcium was usually normal. It is suggested that increased calcium absorption from the gut is a major factor in determining any elevation in serum and urine calcium levels in acromegaly.