Muscle Burns Calories Just Existing—Here’s Why Your Body Wants to Destroy It

Muscle Is Metabolically Expensive—Here’s Why That Matters

Your body is a master of efficiency. And muscle? It’s a high-maintenanc tissue—burning calories even at rest. But that comes at a cost.  

Why Your Body Sees Muscle as an Energy Drain  

- Muscle requires more energy to maintain than fat (about 6–10 kcal/day per pound).  

- When you’re not eating enough, your body panics: Why keep this calorie-burning tissue around?  

- Result? It breaks down muscle to conserve energy, prioritizing survival over strength.  

The Problem with Losing Muscle 

- Slower metabolism (fewer muscles = fewer calories burned).  

- Weakness, fatigue, and a "skinny-fat" look.  

- Harder to regain lost muscle later.  

How to Protect Your Muscle (Especially in a Deficit)  

1. Eat enough protein (0.8–1g per pound of body weight).  

2. Strength train (signals your body: We need this muscle!).  

3. Avoid extreme deficits (crash diets = muscle loss).  

4. Prioritize sleep & recovery (muscle repair happens here).  

Key Takeaway  

Muscle isn’t just for strength—it’s your metabolic engine. Lose it, and your body burns fewer calories. Keep it, and you stay stronger, leaner, and more resilient.  

Protect your muscle. Your future self will thank you.

Read Next: What Your Body Burns First Might Surprise You