@19281928
I think that much of these different reactions may be driven more by individual differences in our bodies rather than different beliefs.
Our bodies just act differently towards fats and different foods and nutrients and even thru different ages of our lives.
Ai says it this way:
People react differently to fats and other nutrients due to a complex interplay of genetics, gut microbiome composition, and metabolic health. This concept, known as personalized nutrition or nutrigenetics, explains why a diet like the Atkins diet (high-fat, low-carb) can yield vastly different results for two people even if they follow it identically.
research with different people and even identical twins and how the react differently:
https://www.fooddive.com/news/study-everyone-responds-differently-to-the-same-nutritional-content-even/556572/