Most people think the biggest problem after 40 is fat gain. It’s not. The real issue is losing muscle—and no one’s talking about it. 

Muscle is your body’s engine. It protects your joints, supports hormones, and helps you stay strong. Once muscle starts slipping, everything else follows—energy, strength, confidence. What you need is a plan to fuel your body and protect your muscles. 

In this guide, I’ll give you a straight answer on how to keep and build muscle over 40. No gimmicks. No fads. Just proven, real-world strategies that fit your life. You’ll know what to eat, when to eat, and how to use food as fuel—without giving up your time, your family, or your momentum.  

Why Muscle Preservation Matters After 40 

The Science of Muscle Loss (Sarcopenia) 

Sarcopenia is age-related muscle loss. It starts around 30 and speeds up with each decade. Without strength training and proper food, you can lose up to 15% of lean muscle by age 70. That leads to weakness, fatigue, and slower metabolism.

Why You Can’t Out-Train Bad Nutrition 

You can work out five times a week, but if your meals are off, you’re wasting time. At this stage, training without a muscle-building meal plan is like building a house without raw materials. 

Protein timing, balanced macros, and recovery meals matter more than ever. If you’re still eating like you did at 25, your results will stall. 

Want a real fix? Try my Grilled Lemon Garlic Chicken recipe—it’s packed with quality protein and built for Muscle Mastery. 

Macronutrients That Matter After 40  

To keep muscle after 40, lock in these three macronutrients: protein, carbs, and fats. Prioritize protein and spread it evenly across meals. Use carbs to fuel workouts. Choose quality fats to support hormones and inflammation control. 

Protein – The Priority  

Protein rebuilds muscle. Most people over 40 don’t eat enough of it, or they eat it all at once—a big mistake. 

Aim for 0.8 grams per kilogram of body weight (or 0.36 grams per pound). Spread that over 3-5 meals. 

Skip relying on shakes. I’d rather you hit your protein goal with real food like Grilled Lemon Garlic Chicken or Teriyaki Chicken. Both are simple, packed with protein, and fit the Muscle Mastery method.   

Carbs – Fuel for Strength  

Carbs don’t hurt your progress—they power it. Cutting carbs too low drains energy and slows recovery. Over 40, that leads to burnout. 

Use carbs around your workouts. Choose whole foods like rice, oats, and sweet potatoes. After your workout, eat fast-digesting carbs and complete protein to help your muscles recover. 

Try meals like Buffalo Sweet Potato Wedges, Cauliflower Fried Rice, or Chicken Fajita Cauliflower Rice Bowl

Fats – Support for Hormones 

Fats play a key role in hormone health and recovery. The wrong fats hold you back. The right ones help you thrive. 

Saturated fats and cholesterol help maintain testosterone. Omega-3s reduce inflammation and boost cellular health. Go for whole eggs, salmon, olive oil, avocado, and even red meat in the right amounts. 

Meal Timing and Frequency 

Front-Loading Protein & Fuel

I coach my clients to eat a solid breakfast and lunch. That’s when your body is most active. Morning meals with 30–40g of protein help flip the switch on metabolism. 

Need ideas? Try the Ham & Cheese Breakfast Sandwich or Egg White Muffins—fast, easy, and muscle-supporting. 

Pre/Post-Workout Nutrition 

Before a workout, eat carbs and protein. Go for a Banana’s Foster Protein Smoothie or Protein Pancakes

After training, your body needs fast fuel to repair. Try a Blueberry Pie Protein Smoothie or Lean Teriyaki Meatballs. They digest quickly and help recovery. 

Intermittent Fasting—Does It Help or Hurt Muscle? 

Intermittent fasting works for some—but not everyone. Especially not active adults trying to build or keep muscle. 

Fasting may help short-term fat loss. But it can raise cortisol, lower testosterone, and slow recovery. It's not ideal if you’re training hard or already under stress. 

My advice? Keep fasting short. Eat early. Train with fuel. Focus on consistent, quality meals throughout the day. 

Best Muscle-Preserving Foods 

Complete Proteins (Animal-Based) 

The best way to keep muscle? Eat complete proteins daily: 

  • Eggs – Easy to digest, full of nutrients. 

  • Chicken & Turkey – Lean, loaded with leucine. 

  • Beef – High in iron, B12, and creatine—critical for strength and recovery. 

  • Fish – Omega-3s reduce inflammation. 

  • Greek Yogurt & Cottage Cheese – High in protein, good for overnight repair. 

Recipes to try: 

Quality Carbs for Muscle 

Carbs help you train harder and recover better:  

  • Potatoes – Nutrient-rich, easy to digest, glycogen friendly. 

  • Fruits – Natural sugar + fiber = stable energy and better digestion. 

  • Oats – Slow-burning, help manage insulin, and support satiety. 

  • Rice – Clean energy, gluten-free, muscle-friendly carb. 

Try these: 

Fats for Hormone Balance 

  • Avocados – Rich in healthy fats and potassium. 

  • Whole Eggs & Butter – Support testosterone. 

  • Olive Oil – Anti-inflammatory and heart-healthy. 

  • Fatty Fish – Omega-3s support joints and brain health. 

Add these to your meal prep: 

Common Pitfalls That Destroy Muscle 

Undereating and Overheating 

“Clean eating” can backfire fast. Too little food, too often, and your body eats muscle instead of building it. 

Signs of under-recovery show up as poor sleep, low energy, and fat gain. Eating smarter—not less—is the fix. 

Too Much Cardio, Not Enough Strength 

Cardio alone won’t build the body you want after 40. Endless jogging drains muscle, tanks testosterone, and leaves you tired and not fit. 

Strength training wins every time. It builds metabolism, protects joints, and reverses aging better than any treadmill ever will. Prioritize weights—cardio comes second. 

Stress, Sleep, and Recovery Neglect 

If you’re not sleeping, you’re not recovering. Period. Poor sleep raises cortisol, which blocks muscle growth and stores belly fat. You wake up tired, wired, and weaker. 

Want better sleep? Start with food. Add carbs to your evening meal—rice, oats, or potatoes. They calm the nervous system and help you stay asleep longer. And if you’re serious about progress, treat sleep like you treat your workouts: with discipline. 

The Muscle-Preserving Blueprint 

Sample Daily Eating Plan 

You don’t need six meals a day. You need consistent, protein-rich meals that work for your routine. Here’s a realistic example: 

7:00 AM – Breakfast 

Egg white muffins + oatmeals or Protein Pancakes

10:30 AM – Snack 

Greek Yogurt Chocolate Mousse + berries 

Add a scoop of protein if short on macros  

1:00 PM – Lunch 

Grilled Lemon Garlic Chicken + rice + roasted veggies 

4:00 PM – Pre-Workout 

Protein Pudding + banana 

6:30 PM – Dinner (Post-Workout) 

Chili Tequila Lime Chicken + sweet potatoes + green beans 

9:00 PM – Optional 

Strawberrry Protein Smoothie or cottage cheese + nut butter 

Meal Planning for Busy Weeks 

Mindset: Fuel Like an Athlete 

Here’s what shifts when you fuel like an athlete: 

  • You stop fearing carbs and start using them 

  • You stop chasing the scale and build muscle that burns fat 

  • You stop quitting when it gets hard—because this becomes who you are 

Muscle Mastery is built for high performers who want more from their health. If you’re ready to train smarter, fuel better, and align your body with how you live, call me at 801-477-7010. 

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