Effects of Calcium and Phytate on Zinc Absorption

Effects of Calcium and Phytate on Zinc Absorption

This study is determine the effects of dietary calcium and phytate on zinc absorption.

Zinc absorption is tested from 2 days of consuming each of four diets with zinc-65 isotope, followed by retention monitoring in a whole body scintillation counter for 4 weeks. All four 4 experimental diets are tested with each subject, in randomized order, for a total of 16 weeks.

Inclusion Criteria:

• Average weight for height

Exclusion Criteria:

• Medications other than birth control pills or hormone replacement therapy,
• Pregnancy within last 6 months