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Seafood-Rich Diet May Help Couples Get Pregnant Faster

Couples who eat more seafood tend to have sexual intercourse more often and get pregnant faster than other couples trying to conceive, according to a study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism.

Seafood is an important source of protein and other nutrients for women who are or may become pregnant, but concerns about mercury have led some women to avoid fish when trying to conceive. According to the FDA and the Environmental Protection Agency, 90% of the fish eaten in the United States is low in mercury and safe to eat. Although the agencies recommend two to three servings of lower-mercury fish per week, 50% of pregnant women still eat far less than the recommended amount.

"Our study suggests seafood can have many reproductive benefits, including shorter time to pregnancy and more frequent sexual activity," says one of the study's authors, Audrey Gaskins, ScD, of Harvard T.H. Chan School of Public Health in Boston. "Our study found that couples who consume more than two servings of seafood per week while trying to get pregnant had a significantly higher frequency of sexual intercourse and shorter time to pregnancy."

In the prospective cohort study, researchers from Harvard followed 500 Michigan and Texas couples from the Longitudinal Investigation of Fertility and the Environment (LIFE) Study for one year to determine the relationship between seafood intake and time to pregnancy. Participants recorded their seafood intake and sexual activity in daily journals.

The researchers found that 92% of couples who ate seafood more than twice a week were pregnant at the end of one year, compared with 79% among couples consuming less seafood. The association between seafood and faster time to pregnancy wasn't completely explained by more frequent sexual activity, suggesting other biological factors were at play. These could include effects on semen quality, ovulation, or embryo quality, Gaskins says.

"Our results stress the importance of not only female but also male diet on time to pregnancy and suggests that both partners should be incorporating more seafood into their diets for the maximum fertility benefit," she says.

— Source: Endocrine Society
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