When people try to lose weight fast, they often lose more than just fat. In fact, research shows that during a typical diet, up to 25-35% of weight loss comes from lean muscle tissue. Nutrition experts at Ben’s Natural Health, say this slows metabolism, leaving people “smaller” but less toned.
Understanding this body composition shift is crucial, as losing muscle reduces your strength and resting metabolic rate.
“Beyond aesthetics, muscle is your metabolic engine,” say the experts. “It is metabolically active tissue that burns roughly three times more calories than fat, even while you sleep. The more muscle you have, the easier it becomes to keep weight off effortlessly.”
Why Muscle Loss Happens
Research confirms that during diet-induced weight loss (whether through calorie restriction alone or certain medications), up to 20% – 40% of the weight lost is lean mass. About half of this lean mass loss is actual skeletal muscle tissue, which slows your metabolism.
When you maintain a significant caloric deficit, your body breaks down muscle to use for energy because muscle is “calorically expensive” to maintain. This process is amplified during rapid weight loss.
How to Preserve Lean Muscle Mass
To protect your muscles, bone health, and metabolic rate, experts recommend the following strategies:
- Increase Protein Intake: Consume adequate high-quality protein to support muscle protein synthesis.
- Engage in Resistance Training: Guidelines suggest doing strength training at least 3 days a week to preserve and build muscle tissue.
- Balanced Cardio: Include moderate-intensity aerobic activity, such as \(150\) minutes per week, alongside strength training.
- Monitor Body Composition: Focus on body composition changes (muscle vs. fat) rather than just the number on the scale.
For more information, you can review the Weight Loss Strategies and the Risk of Skeletal Muscle Mass Loss study on PubMed. If you need or want help creating a tailored plan, consider consulting a local certified personal trainer or registered dietitian.
The experts from Ben’s Natural Health mention that most diets focus on eating less instead of eating right. That’s why she’s shared her top recommendations to help you lose weight and keep muscle.
Surprising Foods that Protect Muscle During Calorie Restriction
1. Cooled Potatoes with Spirulina
Why this combo works: When potatoes are cooled, they form resistant starch – a prebiotic linked to better muscle preservation. Studies found that those who added a high intake (40g) of resistant starch to their diet lost more than 2.8kg of pure fat. Spirulina, a superfood that’s over 60 percent protein, adds amino acids and antioxidants that lower inflammation and support recovery.
How to include it in your diet: Use cooled baby potatoes in a salad with a sprinkle of spirulina powder (3.5g protein) and olive oil. It’s a simple, satisfying side dish that supports your muscles and weight loss.
Nutritional data: 150g cooled potatoes + 5g spirulina = 15g of protein, resistant starch, iron, magnesium, B-vitamins, and chlorophyll for approximately 180 calories.
2. Bone Broth with Pumpkin Seeds
Why this combo works: Bone is rich in collagen and glycine, which act as a shield for your muscles during calorie restriction. Research highlights glycine’s role in combating muscle wasting, ensuring that the weight you lose comes primarily from fat stores rather than lean tissue. Pumpkin seeds, on the other hand, are rich in magnesium and leucine, which are two nutrients that support muscle recovery.
How to include it in your diet: Sip on warm bone broth between meals or sprinkle roasted pumpkin seeds over soups or salads for an easy way to add protein and minerals.
Nutritional data: 240ml bone broth plus 28g pumpkin seeds have around 15g protein, 3g leucine, glycine, magnesium, zinc, and healthy fats for about 200 calories.
3. Edamame with Pistachios
Why this combo works: Edamame is one of the few plant foods that provide all nine essential amino acids and nearly 12g of protein per 100g. Pistachios add BCAAs and healthy fats that help repair muscle and keep you satisfied. With a protein quality score of 81 percent (PDCAAS), pistachios rank higher than almonds or walnuts and almost match chicken and beef.
How to include it: Mix steamed edamame with chopped pistachios and sea salt for a snack that’s rich in protein and satisfying.
Nutritional data: 100g of edamame plus 30g pistachios have about 18g of protein, over 2g of BCAAs, 8g of fiber, potassium, vitamin K, folate, and healthy fats, for roughly 280 calories.
Final Takeaway
“Life-long weight loss should include strength training,” say the experts. “For years, people equated thinness with health, but that mindset has shifted. You can lose weight and still feel weak or look soft if you’re not preserving muscle. If you want to look your best, focus on strength, tone, and energy, not just the number on the scale.
This article was created at the WHN News Desk in collaboration with Cecilia Wilson on behalf of Ben’s Natural Health, a team of doctors, researchers, and dietitians working with the latest research to formulate high-quality, scientifically proven, and clinically effective supplements to provide effective support for your health.
As with anything you read on the internet, this article should not be construed as medical advice; please talk to your doctor or primary care provider before changing your wellness routine. WHN neither agrees nor disagrees with any of the materials posted. This article is not intended to provide a medical diagnosis, recommendation, treatment, or endorsement. Additionally, it is not intended to malign any religion, ethnic group, club, organization, company, individual, or anyone or anything. These statements have not been evaluated by the Food and Drug Administration.
