1) Soy milk contains phytoestrogens, which may elevate the risk of breast cancer. So, if you have a family history of breast cancer, you need to consult your doctor if you can drink soy milk.

(2) Use eggs to wash down soy milk. When eggs are combined with soy milk, the mucus protein in the eggs tends to combine with the protease in the soy milk, producing a substance that cannot be absorbed at all.

(3) Add brown sugar. Brown sugar in the organic acid and soybean milk protein binding, will produce a denaturing precipitate, can decompose and destroy the brown sugar and soybean milk nutrients. But in soybean milk with white sugar will not produce the above chemical reaction.