In this episode, we take on one of the most persistent myths in the fitness industry: that eating protein will burn fat or "hack" your metabolism. Spoiler — it won't. But the truth is actually more interesting than the myth.

We break down the thermic effect of food, what it actually means for your daily calorie burn (with real numbers), and why it has been so dramatically overstated by fitness influencers and supplement marketers. We also cover how protein does genuinely support body composition — through satiety and muscle preservation — and what actually matters if changing your body composition is a goal.

This episode is part 3 of a 3-part protein series.

⌚ TIMESTAMPS

0:00 Intro: Will protein magically hack your metabolism?
4:25 How Satiety works
7:50 An example of how researchers study on protein and satiety
11:40 The thermic effect of food

KEY TAKEAWAYS

⭐ Protein does not directly burn fat — this claim is based on a real but modest phenomenon called the thermic effect of food

⭐ The thermic effect of protein is 20–30%, compared to 5–10% for carbs and 0–3% for fat

⭐ Increasing protein from 50g to 125g on a 2,000-calorie diet burns roughly 60–80 extra calories per day — a small change, but not a metabolism hack

⭐ Protein is the most satiating macronutrient, which can indirectly support lower calorie intake without white-knuckling willpower

⭐ Building and preserving muscle through resistance training and adequate protein is the most meaningful way protein supports body composition

RESEARCH

Description of the Satiety Cascade Model

British Journal of Nutrition study on protein drinks and subsequent meal intake

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