One, flatulence: soybean in the digestion and absorption process will produce too much gas, resulting in bloating, so there are digestive dysfunction, chronic gastrointestinal diseases should try to eat less.

Two, may cause iodine deficiency: soybean eat more will lose more iodine in the body.

Three, aggravate the burden on the kidneys: excessive consumption of soybean will make you too much protein, increasing the burden on the kidneys. Especially the elderly to eat soybeans in moderation, not greedy.

Extended information;

The benefits of soybeans

1, enhance immunity: soybean contains plant protein, "plant meat" reputation. If the human body lacks protein, there will be a decline in immunity, easy to fatigue symptoms. Eat soybean protein, can avoid eating meat cholesterol elevated problems.

2, cancer prevention: soybean contains protease inhibitor, the United States of America, New York University researcher experiments found that it can inhibit a variety of cancers, the inhibition of breast cancer is the most obvious effect.

3, lower sugar, lower fat: soybean contains a pancreatic enzyme inhibiting substances, diabetes has a therapeutic effect. Soybean saponins contained in the blood lipids have obvious effects, at the same time, can inhibit weight gain, reduce serum, liver lipid content and fat content.

4, the prevention of deafness: supplemental iron can expand the microvessels, soften red blood cells, to ensure the blood supply to the ear, can effectively prevent hearing loss. Soybeans in the iron and zinc content is much higher than other foods, to prevent deafness in the elderly has a certain role.

Source of reference; Baidu Encyclopedia-Soybeans