"LOW CARB DIETS AREN'T SUPERIOR TO LOW FAT DIETS FOR FAT LOSS
There is intense controversy over whether low-carbohydrate or low-fat diets are more efficacious for weight management.
Hall et al. (2015) demonstrated that a low-carbohydrate diet promoted greater fat oxidation than an isocaloric low-fat diet but, in contrast to popular speculation, did not cause greater body fat loss.
19 adults with obesity were confined to a metabolic ward for two 2-week periods.
They found that: ➡️Cutting carbohydrates increased net fat oxidation, but cutting fat by equal calories had no effect ➡️Cutting fat resulted in more body fat loss as measured by metabolic balance ➡️Mathematical model simulations predicted small long-term differences in body fat
This study demonstrated that, calorie for calorie, restriction of dietary FAT led to GREATER body fat loss than restriction of dietary CARBOHYDRATE in adults with obesity. This occurred despite the fact that only the carbohydrate-restricted diet led to decreased insulin secretion and a substantial sustained increase in net fat oxidation compared to the baseline energy-balanced diet.
In other words, the equation looks like this: ➡️ Fat balance as a function of fat stored minus fat burned (oxidized). The difference between stored and burned fat equals the net fat balance. In the example presented in the 3rd slide (figure taken from my book Fat Loss Forever, link below), you can see that a higher fat diet causes greater fat burning, but also greater fat storage compared to a calorie equated low fat diet that produces a lower rate of fat burning but also less fat storage 🤚The net fat balance between the two diets is nearly equal"- Layne Norton, PhD
