a post by Richard Hoffman for the Big Think blog
Junk food causes weight gain, but it's not just about the calories.
We know we should eat less junk food, such as crisps, industrially made pizzas and sugar-sweetened drinks, because of their high calorie content.
These “ultra-processed" foods, as they are now called by nutritionists, are high in sugar and fat, but is that the only reason they cause weight gain? An important new trial from the U.S. National Institute of Health (NIH) shows there's a lot more at work here than calories alone.
Studies have already found an association between junk foods and weight gain, but this link has never been investigated with a randomized controlled trial (RCT), the gold standard of clinical studies.
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