Proponents of milk say calcium and other vitamins and minerals in milk make it an important part of a healthful diet for people of all ages. They argue that milk’s benefits include weight loss, strengthening bones, improved cardiovascular and oral health, cancer prevention, and relief of PMS.
Opponents of milk argue that it contributes to obesity, calcium deficiency, allergies, heart disease, cancer, and other health ailments. They argue that claims regarding milk's benefits are merely advertising campaigns designed to promote dairy sales and that many nutritious alternatives to cow's milk exist.