Myths about Soy foods


Soy foods are popular with the fresh and nutritious characteristic for the health. However, there are still several misconceptions that make consumers hesitant. Here we look at the research to bring the facts to the light.


  1. Cow’s milk is better than Soy milk

Protein, calcium, vitamins and other nutrients in fresh milk are higher than soy milk such as calcium 10 mg / 100 g, Protein 3g / 100g, etc. However soy milk has components that cow’s milk doesn’t have like isoflavones, soy saponins, etc.

100ml soy milk contains 58.3 kcal, 3,6g protein, 1,9g fat, 0.8 g fiber and 0.03 g sodium. Besides providing calcium preventing osteoporosis, the general milk also help to strengthen the resistance, prevent disease about gastrointestinal tract. In addition, soy milk has 1% insoluble fiber that is suitable for people with constipation, obesity, high cholesterol and many other cases.

Carotene and vitamin E in soy milk are higher than ones in cow’s milk so drinking soy milk regularly helps people improve vision. Also, soy milk doesn’t contain saturated fatty acids and cholesterol affecting people with cardiovascular disease.

Therefore, it’s impossible to confirm that soy milk is not so good as fresh milk and we should know the key making the good health is to use each type of milk in a reasonable manner.

  1. Soy causes feminization in men

A review in Fertility and Sterility concluded that “Neither isoflavone supplements nor isoflavone-rich soy affects total or free testosterone levels” and that there’s “Essentially no evidence from nine identified clinical studies that isoflavone exposure affects circulating estrogen levels in men.”

In fact, there are many European and American men applied soy-rich diet to protect their health. Many studies have shown that soy is not only good for a heart but also able to prevent prostate cancer.

  1. Eating soy increases breast cancer risk

Besides the causes of breast cancer such as chemicals and radiation, etc., the cancer depends on the female hormone estrogen. This hormone is often derived from the fat. High levels of estrogen can stimulate the development of breast cancer.

Many people think that an excess of female hormones (mainly because of isoflavones in soy) can accumulate in the body and causes increasing of the body’s estrogen levels, which increases the risk of breast cancer.

According to studies, the soy milk contains natural plant estrogens. Women with thin or lack of estrogen, soy foods are very good estrogen supplements. However, with fat women, groups at high risk of breast cancer, should not use too much. They should only consume soy foods in moderation.

In reality, phytochemicals and antioxidants in soy are beneficial for health. Soy milk helps reduce osteoporosis and absorb calcium better. So using soy foods can’t cause breast cancer, it’s good for women’s health and also works to prevent many illnesses.



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