Eating seafood speeds up human reproduction
US couples who eat seafood often have a faster birth than others, according to a new study.
The researchers followed 500 husbands and wives in Michigan and Texas for a year and asked them to register their seafood consumption and sexual activity.
The study found that the chances of having sex increased by 39 percent in the days when the couple ate seafood.
By the end of the year, 92 percent of wives who ate seafood with their husbands more than twice a week were pregnant compared with 79 percent of couples who ate less seafood. The link between seafood intake and fertility persisted even after the effect of frequency of sex was excluded.
“We assume that the association we observed between eating seafood and fertility independently of sexual activity may be due to improved semen quality and menstrual function,” said Audrey Gaskins, who led the study team, a nutritionist at the Harvard School of Public Health in Boston. Which means increasing the likelihood of enrichment and levels of progesterone) and the quality of fertilized egg, as previous studies have observed these benefits with increased intake of seafood and eating fatty acids (omega-3) ».
Adult doctors are advised to eat at least two meals a week of fatty fish, such as salmon, mackerel and omega-3 tuna, which are associated with reduced risk of heart disease and stroke.
However, pregnant or expectant mothers advise not to eat more than three servings of seafood per week to avoid exposure to mercury, a pollutant that may cause fetal deformities and may be more concentrated in sharks, swordfish, mackerel and tuna.
The intake of seafood did not appear to be affected by income, education, exercise or weight.
The study did not rely on an experiment designed to establish whether seafood consumption affects sexual activity or fertility. The types of food consumed by participants were also unclear, which may affect levels of exposure to mercury.
“Fish are not all alike… sardines and anchovies are good and less polluted,” said Tracy Woodruff, director of the Reproductive Health and Environment Project at the University of California, San Francisco. “But it’s more complicated with tuna because it may contain higher mercury.”