According to Neal Hendrickson, "Even though milk is very healthy for you, it could possibly make people gain weight and lose calcium in blood." Infants of the age of one, drink whole milk, which is high in nutrients. Doctors recommend this for premature babies and infants though whole milk is low in iron. Some scientists say that feeding young infants milk can cause anemia, allergies, and insulin dependent diabetes. Milk can be a factor in weight gain process but low fat or fat free milk can help lower weight and cholesterol. Many people today are saying that milk is not the best source of calcium, but this statement has not been fully proven by scientists.