Consuming ultra-processed foods promotes myosteatosis (fat infiltration into muscle), regardless of weight or lifestyle, making the muscle weaker and less healthy from the inside.

noli's read

The claim is based on recent research studying muscle composition via medical imaging, showing a correlation between diet quality and the accumulation of intramuscular lipids. Observational studies, such as those published in nutrition journals, confirm that high consumption of ultra-processed foods is linked to impaired muscle quality, regardless of body mass index (BMI). The idea that muscle can appear healthy on the surface while being infiltrated with fat (myosteatosis) is a well-documented concept in the physiology of aging and metabolism. What is solid is the association between diet and tissue quality. The potentially exaggerated aspect lies in the direct and isolated causality suggested by the creator: while diet plays a major role, a lack of physical activity remains the predominant factor in muscle composition. Current research highlights a complex interaction between nutrition and exercise, rather than a one-way relationship where the plate alone dictates muscle architecture.

the sources

1. 1Hall KD, Ayuketah A, Brychta R, et al. 2019
2. 2Lane MM, Gamage E, Du S, et al. 2024