New research has revealed that it is not just women who are worried about body image and losing weight.An investigation by Slimming World and YouGov found that 67 per cent of men are unhappy with their size and this may be linked to government statistics which show that there are currently over 19 million males in the UK who are overweight or obese.The study found that there were a number of reasons why men might suffer from doubts about their physique as 25 per cent has received negative comments about their weight from a partner.Men might also be keen to lose weight in order to keep a loved one because 19 per cent of women confessed that they think their relationship would be happier if their partner lost weight.Health issues may also compel men to reduce their waistlines because the majority of males were aware of the link between weight and conditions such as heart disease, diabetes and stroke.Combining a healthy diet with plenty of exercise is a great way to slim down and slimming supplements can also help the weight loss process, according to researchers at the University of Liverpool.Scientists at the institution found that weight loss products, such as t5 slimming pills and t5 fat burners, are most effective in the long term if people take them at the same time as a balanced diet and healthy exercise regime.The survey found that 64 per cent of men said they needed to be more active in order to stay healthy and 74 per cent admitted that they are currently less active compared to their childhood.Nutrition expert Dr Jacquie Lavin said that the football world cup is beneficial to men's health as they are inspired to emulate their idols and get fit.She said: "With World Cup fever gripping the country there is a lot of interest in sport at the moment and getting active is great for health and weight. We're definitely in the middle of a shift in attitudes towards slimming and it's great that men are taking more interest in their weight and health."Dr Lavin went onto say that men have the advantage of women in terms of losing weight as they are likely to slim down quicker."Men tend to have a higher muscle mass than women and so burn energy quicker, leading to a quicker weight loss," she added.Men's Health Week 2010 is running from June 14th to the 20th and is this year's theme is 'Men and Physical Activity'.