Updated 27 February 2017

Gradually reducing sugar in sodas could lower diabetes rates

Researchers calculated the positive effects of a 40 percent reduction in sugar content in sugar-sweetened drinks in the UK on rates of diabetes.


Gradually reducing the amount of sugar in sweetened beverages could lead to major declines in obesity and diabetes, a new study suggests.

Findings provide strong support

Such a move could prevent 1 million cases of obesity, 500,000 cases of overweight, and about 300,000 cases of type 2 diabetes over two decades, the team at Queen Mary University of London concluded.

Read: Who gets type 2 diabetes?

Researchers calculated what would happen in the United Kingdom with a 40 percent reduction in sugar content in sugar-sweetened drinks including fruit juices over five years, without replacement with artificial sweeteners.

"The appreciation of sweetness can adapt to gradual changes in sugar intake, and it is unlikely that the proposed strategy will influence the consumers' choice provided the gradual reduction is done over five years," Graham MacGregor and colleagues wrote.

"These findings provide strong support for the implementation of the proposed strategy," they added.

Read: Soda tax won't curb obesity 

The impact would be greatest among teens, young adults and poorer families, according to the study published in The Lancet Diabetes & Endocrinology.

Important information for policy makers

Type 2 diabetes is most common among middle-aged and older people who are overweight or obese, but heavy children and teens are also susceptible, according to the U.S. National Institutes of Health.

The study provides important information for policy makers, Tim Lobstein, director of policy at the World Obesity Federation in London, wrote in an accompanying editorial.

Read: Metformin beats other type 2 diabetes drugs

"Policies can be developed that have the potential to quickly change behaviour and begin to reduce the prevalence of obesity and related diseases," Lobstein said. Other measures also need to be taken, he added, suggesting restrictions on kid-targeted ads for unhealthy foods and implementation of a soda tax.

In combination, such measures could have a much greater effect on sugar consumption than any individual measure, Lobstein noted. 

Read more: 

Why soda is bad for you  

Sugary drinks increase diabetes  

Diabetes: Africa's hidden pandemic 


Ask the Expert

Diabetes expert

Dr. May currently works as a fulltime endocrinologist and has been in private practice since 2004. He has a variety of interests, predominantly obesity and diabetes, but also sees patients with osteoporosis, thyroid disorders, men's health disorders, pituitary and adrenal disorders, polycystic ovaries, and disorders of growth. He is a leading member of several obesity and diabetes societies and runs a trial centre for new drugs.

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