A recent study from Harvard University has suggested that there might be a downside to attempts to get folk to eat more 'fruit and veg' (http://www.theguardian.com/environment/2015/mar/31/pesticide-residue-food-sperm-quality-harvard). The fly in the ointment is the finding that pesticide residues in these foods can reduce human sperm counts by almost 50% as well as generating higher levels on non-viable sperm. It has been known for years that some pesticides (e.g. organophosphates) have oestrogenic effects which might well account for their effects. It is uncertain whether the residues can be removed by simply washing the items before consumption.
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