Abnormal Glucose Tolerance in Manganese-deficient Guinea Pigs

Abstract
The effects of low dietary manganese during pre- and postnatal development on glucose utilization of young adult guinea pigs is reported. Glucose tolerance tests were performed on deficient and control guinea pigs, using both oral and intravenous glucose administration. Deficient guinea pigs showed decreased utilization of glucose and in consequence had a diabetic-like glucose curve in response to glucose loading. Control animals and deficient guinea pigs, given dietary manganese equivalent in amount to that supplied control animals for 2 months, showed normal responses to glucose administration.