Women’s feet are getting bigger, with the average shoe size up from a five to a six in the past five years, figures have found.

Medical experts believe that the rise in size is down to the obesity epidemic, pointing to high-density foods such as pizza being eaten during puberty stimulating the growth hormone.

The research from Debenhams found that in 2009, ladies’ size nines sales increased by 23 per cent, while sales of size sixes jumped by 17 per cent.

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