Junk food that is high in trans fats can damage sperm.
JUNK food, particularly products containing trans fats, can make healthy young men infertile by damaging their sperm, a joint American and Spanish study out today showed.
Fertility doctors from Harvard University and the University of Murcia, southeastern Spain, analysed sperm from hundreds of men aged between 18 and 22 and found those who ate a high proportion of junk food had poorer quality sperm than those with a nutritious diet.
All the men were assessed to ensure they were in optimum shape and had no other problems that may affect their reproductive system, The Sun reported.
The sperm of men with poor diets was found to be less likely to survive the journey to fertilise an egg, even if the men were a healthy weight and exercised.
Meanwhile, a separate Japanese study, also out today, found that taking moderate regular exercise can be good for a man's sperm.
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