The key to fueling active rest days

Rest days are where recovery happens—but they're often misunderstood. Many athletes undereat on rest days, thinking they "don't need as much." In reality, rest-day nutrition supports muscle repair, reduces soreness, and sets you up for better performance in your next session.
I made this mistake during marathon training—dropping calories too low on rest days and wondering why my legs felt heavy on run days. Here's what actually works.
Why rest-day nutrition matters
Your muscles repair and grow during rest, not during training. Undereating slows this process and increases next-day soreness.
Proper rest-day nutrition helps:
- Reduce inflammation and muscle soreness
- Support muscle protein synthesis
- Replenish glycogen stores
- Maintain stable energy levels
How to balance your macros
Protein: Keep it the same as training days
Your muscles are repairing whether you train or not. Aim for 1.2–1.8 g per kg of bodyweight. At 75 kg, that's 90-135g daily for me.
Carbs: Reduce slightly, but don't eliminate
You're not burning through glycogen like on training days, so you can dial back 15-20%. Keep fruits, vegetables, and whole grains in your meals. You still need carbs for recovery and tomorrow's workout.
Fats: Keep steady
Healthy fats support hormone production and reduce inflammation. Include avocado, nuts, olive oil, and fatty fish regardless of training status.
Common mistake: Dropping calories or protein too low. This slows recovery and makes your next training session harder.
Rest-day meal examples
Breakfast:
- Greek yogurt with berries, granola, and honey
- Scrambled eggs with avocado toast and fruit
Lunch:
- Chicken or tofu bowl with rice, roasted vegetables, and tahini
- Salmon with sweet potato and greens
Dinner:
- Lean beef or turkey with quinoa and salad
- Vegetable stir-fry with shrimp or tempeh over rice
Snacks:
- Protein smoothie with banana, spinach, and almond butter
- Apple with peanut butter
- Mixed nuts and dried fruit
These meals promote repair without feeling heavy or causing sluggishness.
Hydration and key micronutrients
Aim for 2-3 liters of water daily, even on rest days. Dehydration slows recovery.
Important micronutrients for recovery:
Omega-3s – Reduce inflammation and support joint health. Find them in salmon, sardines, walnuts, and flax seeds.
Magnesium – Helps muscles relax. Found in spinach, almonds, and dark chocolate.
Vitamin D – Supports bone health and immune function. Consider supplementing during winter months if you're not getting much sun exposure.
What to avoid on rest days
These habits slow recovery and affect training quality:
❌ Severe calorie restriction – Your body needs fuel to repair
❌ Excessive alcohol – Disrupts recovery processes
❌ High-sugar "cheat days" – Causes inflammation and energy crashes
❌ Skipping meals – Creates nutrient gaps that delay recovery
The bottom line
Rest days aren't "off" days—they're recovery days. And recovery requires proper fuel.
Eat enough to support muscle repair. Keep protein consistent. Don't fear carbs. Stay hydrated. Your next training session will show the difference.
— Luca
References
- ACSM (2017). Recovery nutrition guidelines.
- ISSN (2018). Protein intake for athletes.
- Journal of Applied Physiology (2020). Recovery and muscle repair.
FAQ's
Yes, slightly—about 15-20% less than training days. But don't cut them completely. You need carbs for recovery and to fuel tomorrow's session.
Only if you're struggling to hit your daily protein target through whole foods. Prioritize real meals first.
Not necessary unless it's very hot or you're still sweating heavily. Water is usually sufficient. Save electrolytes for training days.
