Portion size key in tackling obesity, says study
By James Gallagher Health editor, BBC News website
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.
http://www.bbc.co.uk/news/health-34246119