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Another reason why being single isn’t all that bad.

And it may be the reason why love handles got their name – you are more likely to put on weight when in a relationship than if you are single, scientists have claimed.

A study of more than 15,000 people over nine years has found those in couples are a fifth less likely to be a normal weight than single, widowed and divorced people. While the researchers did find that couples tend to eat more fruit and vegetables, and are less likely to smoke and drink alcohol to excess, there are other factors which could be causing them to pack on the kilos.

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Their report states: ‘Marriage (or de-facto relationships) comes with spousal obligations such as regular family meals. While they may include more healthy foods such as fruits and vegetables and less fast food, people often consume larger portion sizes and more calories in the company of others than they do alone, resulting in increased energy intake.’

Researchers who conducted the study, also suggest that married people gain weight because they no longer need to remain thin to attract a mate.

Lead author Dr Stephanie Schoeppe told New Scientist magazine: ‘When couples don’t need to look attractive and slim to attract a partner, they may feel more comfortable in eating more, or eating more foods high in fat and sugar.