For the elderly should not drink too much milk

Excessive consumption of milk in the elderly more harm than good, because the milk can promote the occurrence of senile cataract. The reason is that milk contains 5% lactose by lactic acid enzymes, broken down into galactose, easily deposited the eye lens in the elderly and affects the normal metabolism, but also prone to protein denaturation, resulting in reduced lens transparency, while the old evoked the incidence of cataract, or exacerbate their condition.