Social & Preventive Medicine Nutrition and health 8231012f RDA of calcium in normal adult male is? A 600 mg B 400 mg C 1200 mg D 100 mg High-Yield Explanation RDA of calcium in normal adult male is 600mg/dl.REF.PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE.Editon-21.Page no.-588 table no.29