Women - it seems - find it far easier to confront partners piling on the weight than they do to tell gravitationally challenged friends. (Mmm ... perhaps the secret lies in the word 'confront'.)

Men on the other hand, caring and sensitive souls that we are, are far more wary of breaking the dreaded news to partners but much more forthcoming with friends - even female ones.

A poll of more than 2,000 people, supported by the National Obesity Forum, found that while a third of men would feel squeamish about telling their women partners that yes their bum does look a teensy, teensy bit big in this (or anything else for that matter), a whopping ninety per cent of women will come right out with it and tell their male partners that they're overweight.

However, women's forthrightness changes when the overweight person is a close friend. Then, 23 per cent of women would find it hard to bring up the subject compared to only 8 per cent of men, the poll discovered.

Most of us are however worried about someone else's weight.

In fact, 59 per cent of those polled worried that a loved one's weight would make them more vulnerable to serious health problems. But 31 per cent felt such concern about hurting their partners' feelings or provoking a backlash that the subject became a no-go area.

'Suggesting to someone that they should consider losing a few pounds may not be a comfortable conversation to have,' said Professor David Haslam from the National Obesity Forum. ' ... but if someone close to you has a large waistline, discussing it with them now could help them avoid critical health risks later and could even save their life,'.