Age Vitamin Source 0-1 year Calcium (400-600 mg) Found in 48 oz breast milk or 32 oz formula Vitamin C (30 to 35 mg) Vitamin C fortified juices 1-3 years Iron (10mg) 1 cup cooked wheat cereal Kidney beans and meat Vitamin A (400 RE) 1/6th baked sweet potato Carrots, cantaloupe, apricots 4-6 years Vitamin C (45mg) One orange ½ cup broccoli ½ cup strawberries Niacin (12 mg NE) 3 oz hamburger has 4.4 mg NE 3 oz tuna has 11 mg Thiamin (0.9 mg) 1 cup oatmeal has 0.3 mg Riboflavin (1.1 mg) 1 cup wheat flakes contains .42 riboflavin 7-10 years Vitamin B12 (1.4 mcg) 3 oz Pacific Halibut 3 oz hamburger 1 cup yogurt Magnesium (170 mg) ¼ cup peanuts contains 64 mg