Study finds junk food may increase infertility in healthy men - The Globe and Mail:
"Doctors at Harvard University and the University of Murcia, Spain, have found that junk food can make young men infertile, even if they’re physical fit and in good health, British newspaper The Sun reports."
"In particular, participants who consumed high levels of trans fats, naturally found in fried foods, had the worst quality sperm – that is, sperm that was least likely to survive the journey to fertilize an egg. This was the case, even for men who were a healthy weight and exercised. "
"The researchers examined the sperm and diets of hundreds men, ages 18 to 22, all of whom were screened to ensure they were in top shape and had no health problems that would affect their reproductive systems. The participants were asked to keep a journal of what they ate for several months. "