Government advice about the protective effects of having five-a-day is now in doubt following a study undertaken in the UK. Researchers say that enjoying five or more sexual partners each day significantly increases the likelihood of contracting one of many virulent sexually transmitted infections, contrary to conventional wisdom that partaking in "five-a-day" is generally beneficial to health.
The study, commissioned by the Department of Sexual Health at the University of Wolverhampton, found that making sure to get at least one from each colour further increased the risks, eschewing popular belief that mixing things up is healthier than sticking to one colour.
One of the experiment participants, Mr M Owen from Oldham, said "this five-a-day thing is actually pretty exhausting".
