Reducing the portion sizes offered in supermarkets, restaurants and at home would help reverse the obesity epidemic, say researchers. They say their review of 61 studies provides the “most conclusive evidence to date” that portion size affects how much we unwittingly eat. The team at the University of Cambridge also said smaller plates, glasses and cutlery helped people eat less. Experts said people were “reluctant” to leave a plate with food on it. Their data, published in the Cochrane Database of Systematic Reviews, shows that when people are offered more food they will eat it. And the team warns that in recent decades portion sizes have been increasing. About two in three adults in the UK are either overweight or obese, which increases the risk of heart problems, type 2 diabetes and cancer. The findings, which are based on 6,711 people taking part in a wide range of clinical trials, suggest that eliminating “large portions” could cut up to 279 calories a day out of people’s diets. Dr Ian Shemilt, from Cambridge’s Behaviour and Health Research Unit, told the BBC News website: “This is the most conclusive evidence to date that people consistently consume more food and drink when given…
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