Why losing weight makes you healthier — even on different diets
Caloric Restriction per se Rather Than Dietary Macronutrient Distribution Plays a Primary Role in Metabolic Health and Body Composition Improvements in Obese Mice
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
When mice ate less food, they lost fat and got healthier — no matter if they ate mostly carbs, fat, or protein. But eating less protein made them lose less weight, and only the high-fat, low-carb diet lowered a certain blood fat.
Surprising Findings
The low-carb group had the worst improvement in glucose tolerance despite cutting carbs.
Common belief: low-carb diets = better blood sugar. But here, cutting carbs didn’t help glucose control as much as moderate-carb or high-protein diets under the same calorie deficit.
Practical Takeaways
If you want to lose fat and improve cholesterol, focus on creating a consistent calorie deficit—choose any diet you can stick to.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
When mice ate less food, they lost fat and got healthier — no matter if they ate mostly carbs, fat, or protein. But eating less protein made them lose less weight, and only the high-fat, low-carb diet lowered a certain blood fat.
Surprising Findings
The low-carb group had the worst improvement in glucose tolerance despite cutting carbs.
Common belief: low-carb diets = better blood sugar. But here, cutting carbs didn’t help glucose control as much as moderate-carb or high-protein diets under the same calorie deficit.
Practical Takeaways
If you want to lose fat and improve cholesterol, focus on creating a consistent calorie deficit—choose any diet you can stick to.
Publication
Journal
Nutrients
Year
2021
Authors
P. Minderis, A. Fokin, Mantas Dirmontas, Mindaugas Kvedaras, A. Ratkevičius
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Claims (6)
When overweight mice eat fewer calories, only those on a low-carb, high-fat diet see a big drop in blood fats called triglycerides — other diets don’t have the same effect.
When overweight mice eat significantly less food, they lose body fat no matter if their diet is low in carbs, low in fat, or high in protein — the key is eating fewer calories overall.
When overweight mice lose weight by eating less, their cholesterol levels go down — no matter what kind of food they eat — because the drop in cholesterol is tied to how much weight they lost.
Even when overweight mice eat much less food, their leg muscles don’t shrink — as long as they get enough protein — showing that muscle loss isn’t inevitable during weight loss.
Improvements in metabolic markers and weight loss observed on extreme low-carb or carnivore diets are primarily attributable to caloric restriction and elimination of ultra-processed foods, not to the physiological properties of animal-based foods alone.