Instant coffee contains trans fatty acids, which can affect fertility.

People in their 20s may not have the idea of "when to have a baby". But a recent article in an American medical and health journal pointed out that no matter how young you are, you should "maintain" your fertility from the age of 20. Pay special attention to a reasonable diet and avoid toxic and harmful substances in the environment.

A number of new studies have found that the hard plastic packaging of many foods and drinks contains bisphenol A, which reduces cell division in the womb and prevents embryos from attaching to the uterine wall. For safety's sake, it is best to use less microwave to heat food containers made of polycarbonate and eat less canned food. In addition, some foods contain trans fatty acids that are bad for both men and women.

Nowadays, instant coffee and milk tea, which young men and women like very much, are not good things. They contain large amounts of milk essence, a trans fatty acid that reduces male hormone secretion and inhibits sperm motility; it also affects egg quality and increases the risk of infertility and fetal malformations. Trans fatty acids can affect hormone synthesis, which may lead to irregular menstruation, sexual dysfunction and so on.

Although there is no secret recipe for pregnancy, good eating habits can keep hormone levels stable, so people should eat more fresh fruits and vegetables and replace refined carbohydrates with whole grains in case insulin levels rise rapidly and inhibit ovulation.