How ultra-processed food took over

From this article, I learned about the Nova system of classification grouping foods by the level of processing. Group 4 is ultra-processed, alleged to be the major cause of obesity. Researcher Kevin Hall thought this was “nonsense” and the prior literature was all based on correlations, so he performed a randomized controlled study. Surprise! “Hall’s study provided evidence that an ultra-processed diet … really does cause over-eating and weight gain, regardless of the sugar content.” | learn more