Christmas Day sugar intake is 32 teaspoons

More than half of half of people said they would follow dinner with Christmas pudding, with 23 per cent planning to have dollop of cream. Between meals, 40 per cent said they snacked on nuts and 30 per cent on crisps, both of which are often contain added salt.

A third of people will eat at least one mince pie, and over half enjoy chocolates throughout the day. Combined with overindulgence at mealtimes, sweet snacks bring the average person's Christmas day sugar intake to the equivalent of 32 teaspoons.

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Christmas Day high fat fears

The British Heart foundation has warned that the average person in Britain could consume the equivalent of half a pack of lard in saturated fat, and as much salt as would be found in 50 packets of crisps on Christmas Day.