Tax on beverages may reduce obesity in 200 000 South Africans

2014-08-20 10:07

A suggested tax on sugar-sweetened beverages may reduce obesity in 220 000 adults in South Africa, research by the University of Witwatersrand has found.

“By instituting a 20% tax ... it is predicted to reduce energy intake by about 36 kilojoules per day, resulting in a 3.8% reduction in obesity in men and a 2.4% reduction in obesity in women,” researcher Mercy Manyema said today.

This translated to a decrease of more than 220 000 obese adults in South Africa.

Manyema said it was the responsibility of the government to protect the health of its population.

“One way of doing so is through nudging people to make healthier and more sustainable choices. An sugar-sweetened beverages tax has the potential to do this in addressing obesity-related diseases,” said Manyema.

Research was carried out by academics from the university, and it was published in an open-access journal, Plos One, yesterday.

The paper measured the effect of a tax on sugar-sweetened beverages on the prevalence of obesity among adults in South Africa.

It found that taxing these beverages could affect the problem of obesity in the country, particularly in young adults.

The academics said South Africans had become more obese over the past 30 years, and the country was presently considered the most obese country in sub-Saharan Africa.

Over half of South Africa’s adults were overweight or obese – 42% of women and 13% of men.

“While sugar-sweetened beverages alone may not be the only reason for an increase in body fat, these fizzy drinks do not contain any essential nutrients, have a high sugar content and a strong link to weight gain,” said senior author of the paper, Professor Karen Hofman.

“Drinking just one sugar-sweetened beverages a day increases the likelihood of being overweight by 27% for adults and 55% for children.”

The paper follows a recommendation by Health Minister Aaron Motsoaledi on the need to regulate foods high in sugar to address obesity and its related diseases.

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