Beer, wine, nuts and coffee could all harm male fertility, according to the findings of a new study.

Research conducted by the Medical Research Council in Cambridge found high levels of phytoestrogens in the products, as reported by the New Scientist.

The chemicals have been linked with fertility problems in livestock although rival research has indicated that phytoestrogens could help fight cancer and heart disease.

The news comes after reports earlier this summer that regularly eating soya could play a role in lowering male fertility. Soya also contains large amounts of phytoestrogens.

“The data we have collected has enabled us to put together an accurate table of which foods contain the highest levels of phytoestrogens, so we can look at the effect of long-term exposure and work out what the safe levels are likely to be for humans,” said Dr Gunter Kuhnle of the MRC Dunn Human Nutrition Unit in Cambridge.