Which of the servings of food below meets the 300 rule for Calcium?答案选项组1 cup yogurt¾ cup or 6 oz ice cream6 oz milk6 oz frozen yogurt

The "300 rule" for calcium refers to the idea that a serving of a dairy product that contains 300 milligrams of calcium is considered a good source of this nutrient.

1. 1 cup of yogurt: A cup of yogurt typically contains about 300-450 milligrams of calcium, so it meets the 300 rule for calcium.

2. ¾ cup or 6 oz of ice cream: A serving of ice cream contains about 84 milligrams of calcium, so it does not meet the 300 rule.

3. 6 oz of milk: A 6-ounce serving of milk contains about 188-222 milligrams of calcium, so it does not meet the 300 rule.

4. 6 oz of frozen yogurt: A 6-ounce serving of frozen yogurt contains about 103 milligrams of calcium, so it does not meet the 300 rule.

So, the serving of food that meets the 300 rule for Calcium is 1 cup of yogurt.