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A man is considered infertile if she has more than 20 million sperm per millimeter of semen fluid. In order quantity of sperm is maintained, should reduce the prospective father soy consumption.

Research conducted on 99 men with fertility problems showed, those who eat foods made from soy every day, decreased sperm count.

This is caused by chemical compounds called isoflavones in the soy. Isoflavones similar to the hormone estrogen. Increasing the amount of estrogen will make the body fat percentage increased (that’s why women have higher body fat). In fact, excess weight will lead to reduced fertility.

In addition, soybean is also known to reduce the absorption of zinc by the body. For men who are planning a pregnancy, zinc is necessary to increase the number of sperm and testosterone hormone levels.

However, it does not mean all the food made from soybeans should be avoided. What is important is to keep the amount of soy intake was not excessive. The reason, a number of studies that examine the link between soy and fertility showed decreased sperm counts when soybeans are consumed in excessive amounts.

For example, in a study of mice showed that consumption of soy in a low number (approximately 2mg/kg body weight) for 90 days, did not cause a reduction of sperm. Only when the dose increased to 20 mg / kg or 100 mg / kg, a reduction.

Fortunately, levels of soy in the diet is not too high. For example, 1 cup of soy milk contains 30 mg, 1 / 2 cup soy nuts contains 47 mg, tempeh about 37 mg, 20 mg and know. So, if your weight approximately 79 pounds, the new reduction in sperm count occurs when you consume 1600 to 8000 milligrams of soy.