Friday, 22 Mar 2019

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New study casts doubt on 'healthy obesity'

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Health Desk-- 31 May, 2018: A large study suggests women who are overweight or obese but otherwise healthy are still at an increased risk of cardiovascular disease.

The analysis tracked the health of 90,257 women in the US for up to 30 years.

Those with excess weight were likelier to have a stroke or heart attack, even if they had normal blood pressure and cholesterol and no diabetes, it found.

Researchers said it showed "healthy obesity is not a harmless condition".

Obesity affects almost all of the cardiovascular disease risk factors, such as high blood pressure, excess cholesterol and diabetes.

But some obese people do not appear to have these metabolic disorders, leading scientists to debate whether or not the excess weight actually raises their risk.

This new study found women who were overweight or obese (BMIs in excess of 25 and 30 respectively) but had none of these risk factors were 20% and 39% more likely to develop cardiovascular disease than women of a normal weight (BMI 18.5-24.9) who were metabolically healthy.

However, the authors said it showed an association rather than cause and effect, and was mainly in white women, meaning the findings cannot be generalised to other ethnic groups or men.