Reducing animal protein intake in favor of carbohydrates is linked to an increase in waist circumference in women.

noli's read

The advice is based on an observational study (PMID: 25926512) that examined the associations between protein sources and body composition. This research confirms that a substitution of animal proteins with refined carbohydrates is correlated with an increase in waist circumference, a marker of abdominal fat. What holds up: nutritional substitution (protein vs. carbohydrates) effectively influences satiety and body fat management. What is nuanced: the study is observational, which means it shows a correlation and not a direct causal link; other lifestyle factors influence these results. It is important to note that it is not animal protein per se that is 'protective,' but the overall metabolic effect of maintaining an adequate protein intake and the quality of the carbohydrates chosen. The point of caution is not to interpret this as an exclusive necessity to consume animal products, but rather as a reminder of the importance of protein density in the diet.

the sources

No named source held this one up — that absence is part of the verdict.