Watch the full episode here:    • Why unhealthy carbs are making you si...  

Sugar sweetened beverages are everywhere. Some have misleading claims about being great for your health. So what’s the truth about the nutritional content of these sugary drinks, and are they ever healthy?

Jonathan talks with Professor Walter Willett to try and find out.

Professor Walter Willett, from the Harvard T. H. Chan School of Public Health, is the world's most cited nutritional scientist — with over 2,000 publications and several books to his name. Prof. Willett has focused much of his work over the last 40 years on the development and evaluation of methods to study the effects of diet on the occurrence of major diseases.

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