The number of overweight and obese people in the developing world has grown from 250 million in 1980 to a billion in recent years, according to the Overseas Development Institute.

The number of overweight and obese people in the developing world has grown from 250 million in 1980 to a billion in recent years, according to the Overseas Development Institute.

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South Africa is Fighting Obesity With a Sugar Tax

The South African government is planning to implement a sugar tax to help curb the country's growing obesity epidemic.