Is eating too much tofu harmful? Delicious things should not be over-indulged in; even good things should be consumed in moderation. Long-term and excessive consumption of tofu may lead to the following problems:
First, it can promote arteriosclerosis.
Soy products contain extremely high levels of methionine, which can be converted to cysteine under the action of enzymes. Cysteine can damage the endothelial cells of the arterial wall, causing cholesterol and triglycerides to deposit on the arterial wall, leading to the formation of arteriosclerosis.
Second, it can trigger gout attacks.
Tofu contains a relatively high amount of purines. Gout patients with abnormal purine metabolism and patients with elevated blood uric acid levels are more likely to experience gout attacks if they consume too much tofu.
Third, it can lead to iodine deficiency.
The soybeans used to make tofu contain saponins, which can accelerate the excretion of iodine in the body. Long-term excessive consumption of tofu can easily cause iodine deficiency, leading to iodine deficiency disorders.
Fourth, it can increase the burden on the kidneys.
Under normal circumstances, the plant protein a person consumes is metabolized, and most of it eventually becomes nitrogenous waste, which is excreted by the kidneys. As people age, their kidneys' ability to excrete waste decreases. If one does not pay attention to their diet and consumes a large amount of tofu, the excessive intake of plant protein will inevitably increase the amount of nitrogenous waste in the body,加重 the burden on the kidneys, which is not conducive to good health.
Fifth, it can be harmful to sperm.
Preliminary laboratory research by British scientists has found that a plant chemical in soy may be harmful to sperm. According to Reuters, British researchers have reported that a plant chemical found in soy may be harmful to sperm, affecting male fertility. The chemical, genistein, which mimics the effect of estrogen, affects mouse sperm, according to research by Professor Lynn Fraser of King's College London. Fraser said at a fertility conference: "Human sperm are more sensitive to genistein than mouse sperm." In the experiment, Fraser found that even small amounts of this chemical could damage male sperm, causing them to become "exhausted" and lose their ability to fertilize an egg as they swim towards it. The effects on sperm observed in the lab may not have a direct connection to real life. However, Dr. Allan Pacey of the University of Sheffield, England, said the concern is whether these chemicals could affect mature sperm.
Sixth, women attempting to conceive should be cautious with soy products.
Frazer added that if women consume soy and other foods rich in genistein, the impact on male fertility could be greater, as this chemical is likely to affect sperm when it enters the female body to fertilize an egg. Fraser explained: "Maternal exposure to this substance is probably more dangerous than paternal exposure."
Although this is preliminary research, Fraser speculates that these findings could affect women trying to conceive. She said at a conference of the European Society of Human Reproduction and Embryology: "Based on our research, if you have a habit of consuming large amounts of soy products, you should limit your diet during your ovulation period." Link to special genes for pregnancy in advanced age. When British Prime Minister Blair's wife, Cherie, gave birth to her fourth child, Leo, at the age of 45, Blair's "virility" was widely praised by British society.
But Leo's birth was likely due to Mrs. Blair's genes, not the Prime Minister himself. Recently, scientists have identified a specific gene in women who can conceive naturally after the age of 45. Researchers at Hadassah University Hospital in Jerusalem studied 250 of Ashkenazi Jewish women and discovered they have a gene in their ovaries that seems to prevent DNA damage and cell death.