That apple a day? Consider choosing it wisely: If it’s laden with pesticide residues, it could mess with your sperm.
That’s the analysis from researchers at the Harvard School of Public Health in a study published online this week in the journal Human Reproduction.
The study found that men who ate a range of fruits and vegetables, including strawberries, peppers, spinach and apples, with higher levels of pesticide residues had a lower sperm count and a lower percentage of normally-shaped sperm compared to men who ate produce with less pesticide residue. (This finding was true even after fruit was washed before eating.) Researchers said it’s the first study to examine exposure to pesticides and semen quality.
Senior study author Jorge Chavarro, assistant professor of nutrition and epidemiology at the Harvard School of Public Health, said the research doesn’t mean people should eliminate fruits and vegetables from their diet — on the contrary; rather consumers should simply choose more carefully. In an email, he wrote:
I think there are two main takeaways from this work. The first one is that, as interesting and potentially alarming these findings may be, this is the first time that pesticide residues in foods have been linked to an adverse reproductive health outcome in humans. It is therefore very important that these results are replicated in other studies, and ideally in randomized trials, before firm conclusions can be made one way or the other.
On the more practical end, the other important point is that our results point to a very specific role of high pesticide residue produce, rather than to intake of fruits and vegetables in general which means that strategies specifically aimed at avoiding high residue produces, such as consuming organic produce if budget allows or selecting fruits and vegetables known to have low levels of pesticide residues may be the preferred way to address this issue…
Chavarro said the easiest way to determine produce safety is to check the dirty dozen/clean fifteen list that the Environmental Working Group releases each year. Continue reading