Non-sugar sweeteners: why the WHO advised against using them for weight loss
"Zero" drinks and artificial sweeteners were promoted for years as an easy way to lose weight. In 2023 the World Health Organization reached a different conclusion.
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Is breakfast the most important meal of the day? What clinical trials say
For generations we have been told that breakfast is the most important meal and that those who skip it gain weight. When it was tested in clinical trials, the picture turned out simpler: what you eat matters more than when.
Low fat or low carb? What the DIETFITS study showed
For decades the debate has been: should we cut fat or carbohydrates to lose weight? A large Stanford University study gave an answer that surprised many.
Intermittent fasting: what the clinical trials showed
Intermittent fasting has become one of the best-known diets. But when researchers compared it with an ordinary diet with the same calories, the difference was small or absent.
Ultra-processed foods: what an experiment with 500 calories a day showed
When people were allowed to eat as much as they liked, on an ultra-processed diet they ate about 500 calories more a day than on unprocessed foods. Here is what that means.