Study: Replacing Animal Products With Plant-Based Foods, No Matter How Processed, Leads to Weight Loss

A study conducted by the Physicians Committee for Responsible Medicine found that replacing animal products with plant-based foods, regardless of how processed the foods are, can lead to significant weight loss. Participants in the intervention group who followed a low-fat, plant-based diet with no calorie limit experienced improved metabolism, cardiometabolic risk factors, and lost an average of 13 pounds, while those in the control group saw no significant change. The top predictors of weight loss were reduced consumption of processed animal foods, unprocessed/minimally processed animal foods, and ultra-processed animal foods.

Numerous studies have shown the health benefits of plant-based diets, with a recent meta-analysis suggesting that replacing meat with plant-based alternatives can reduce cholesterol and body weight within weeks. Consuming more plant proteins and less meat has also been linked to lower heart disease risk. Choosing plant-based foods, even those considered ultra-processed like soy milk and vegan meat alternatives, over animal products can have a positive impact on weight and overall health.