Sugar - not salt - is to blame for high blood pressure, US researchers claim.
They
argue that high sugar levels affect a key area of the brain which
causes the heart rate to quicken and blood pressure to rise.
The
scientists from New York and Kansas also highlight a recent study of
8,670 French adults which found no link between salt and high blood
pressure.
For years the public have been urged
to slash their salt intake and guidelines state it should be restricted
to a teaspoon a day.
Experts say it increases the risk of strokes by a quarter and it has been blamed on 3 million deaths worldwide annually.
But in an article in the American
Journal of Cardiology, researchers led by Dr James DiNicolantonio state
‘It is sugar not the salt that may be the actual causative factor for
high blood pressure.
‘This
notion is supported by meta analyses of randomised control trials
(large-scale studies) suggesting that sugar is more strongly related to
blood pressure in humans than sodium.
‘Encouraging consumers to hold the sugar, not the salt, may be the better dietary strategy to achieve blood pressure control.’
Around a quarter of adults in the UK have high blood pressure and it greatly increases the risk of strokes and heart disease.
This research is further evidence of the health risks posed by eating too much sugar.
Guidelines from Public Health England,
the agency responsible for tackling obesity, in June stated that women
should have no more than five to six teaspoons of sugar a day and men
seven to eight.
But the
average adult consumes 15 teaspoons largely due to the high levels of
hidden sugar in fruit juice, muesli, yoghurts, sandwiches and ready
meals.
Some experts want the Government to impose a sugar tax on fizzy drinks although ministers have so far rejected these calls.
The
Government's chief advisor on obesity, Professor Susan Jebb, has also
urged parents to ban fruit juice and fizzy drinks from the dinner table
and stick to water.
Experts are also worried that sugar is behind an increase in tooth decay in children and could affect their ability to learn.
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