A Simple Way to Prevent Muscle Loss, According to New Study

 

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A Simple Way to Prevent Muscle Loss, According to New Study

"New science shows your gut microbiome directly influences muscle strength, power, and long-term vitality, making nutrition and training inseparable.

We say it all the time: you have more power than you realize to shape your future. And when it comes tolongevityLiving a long life; influenced by genetics, environment, and lifestyle.

And when it comes to 

[lon-jev-i-tee] noun

Living a long life; influenced by genetics, environment, and lifestyle.

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longevity, strength is non-negotiable.

A new editorial in Frontiers in Sports and Active Living echoes this truth, arguing that building and maintaining muscle during midlife is one of the most important investments you can make for your long-term healthspan.

The editorial, authored by UK researchers, focuses on the rising threat of 

[sar-koh-pee-nee-uh] noun

Age-related loss of muscle mass and strength.

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sarcopenia, which is the gradual loss of muscle mass, strength, and function with age. While many associate sarcopenia with the elderly, the authors argue that its roots are planted much earlier and that proactive strategies in middle age can dramatically change the trajectory of healthspan.

“The physiological decline in skeletal muscle mass, strength, and quality is not exclusively a phenomenon of older age,” the authors write. “In fact, changes in muscle function and metabolism can begin as early as the fourth decade of life.”

In other words, if you’re in your 40s or 50s, you are in a critical phase that can either set you up for decades of vitality or begin a silent decline that will only become obvious years later.

Why Building Muscle Now Protects Your Health for Decades

Skeletal muscle is a metabolic powerhouse, playing a major role in glucose regulation, fat storage, and energy regulation. Loss of muscle mass is strongly associated with chronic diseases like type 2 diabetes, cardiovascular disease, osteoporosis, and cognitive decline.

Preserving muscle isn’t just about building mass; it’s also about supporting muscle quality. Muscle becomes infiltrated with fat and connective tissue over time, decreasing its functional capacity even if mass is preserved. That’s why focusing on both strength and power, meaning the ability to generate force quickly, is essential.

The authors emphasize that resistance training, also known as strength training, is an essential component of sarcopenia prevention. Not cardio alone. Not yoga alone. “The inclusion of high-velocity resistance training (power training) has been proposed to counteract the rapid decline in muscle power with age,” they note.

One of the most exciting insights discussed in the editorial is the emerging understanding of the gut-muscle axis. Your gut microbiome, those trillions of bacteria living in your digestive system, plays a direct role in muscle health. 

In fact, your muscles and your gut are in constant conversation. Strong muscles help support a healthy, diverse gut microbiome, and in return, a healthy gut helps your body build and maintain muscle.

“Gut microbiota composition influences systemic 

[in-fluh-mey-shuhn] noun

Your body’s response to an illness, injury or something that doesn’t belong in your body (like germs or toxic chemicals).

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inflammation, insulin sensitivity, and nutrient metabolism, all of which are critical for muscle maintenance,” the authors note.

A healthy, diverse microbiome supports better protein absorption, reduces muscle-degrading inflammation, and even promotes mitochondrial function inside muscle cells. Disruptions to the microbiome (through poor diet, stress, or antibiotics) can worsen muscle decline.

New research continues to strengthen this connection. A 2025 study published in Frontiers in Nutrition analyzed data from nearly 9,500 adults and found a clear link between gut-friendly diets and muscle preservation.

Researchers used a framework called the Dietary Index for Gut Microbiota (DI-GM), which evaluates how much a person’s diet supports a healthy gut microbiome. The DI-GM scores specific foods and nutrients based on how whether they support gut health or not (See: The 10 Foods That Strengthen Your Microbiome and Help You Age Slower).

How Your Microbiome Supports Muscle Health

• Miscrobiome-Supporting foods Decrease Muscle Loss: Each one-point increase in DI-GM score was associated with a 15% lower risk of sarcopenia. Those with the highest DI-GM scores had a 51% lower prevalence of sarcopenia compared to the group with the lowest scores.
  
• Inflammation-Causing Foods Increase Muscle Loss: Conversely, diets higher in inflammation-causing foods, measured by the Dietary Inflammatory Index (DII) ,were linked to a 28% higher risk of sarcopenia.

Even more compelling, the researchers found that over half of the protective effect of a gut-friendly diet on muscle strength could be explained by reducing systemic inflammation.

In short: Eating to support your gut microbiome is a powerful way to protect your muscles as you age.

The Best Way to Eat Protein for Muscle Growth

While diet plays a critical role in muscle maintenance, nutrition alone isn’t enough.

Muscle protein synthesis declines with age, meaning you’ll need higher protein intake in order to induce an anabolic (muscle-building) state. However, simply eating more protein without pairing it with resistance training “produces minimal impact,” says the researchers.

In fact, a recent study found that high-protein diets alone had limited effects on muscle mass and strength in physically active middle-aged adults.

The message is clear: Protein supplementation without strength training won’t prevent sarcopenia. The true formula for midlife muscle health is integrated.

The Formula For Building (and Keeping) Quality Muscle

This approach creates a continuous, low-grade anabolic environment, supporting stronger, more resilient muscles over time.

• Incorporate progressive resistance training at least 2–3 times per week
• Incorporate compound movements (exercises that work multiple joints and muscle groups) like jumping.
• Pay special attention to power exercises, like fast-paced bodyweight squats, to maintain speed and agility
• Aim for 25–30 grams of protein per meal
• Prioritize a variety of high-quality protein sources rich in essential amino acids
• Time protein consumption around workouts to maximize recovery and growth

Through smart strength training, conscious nutrition, and care for your gut health, you can rebuild and future-proof your body for the decades ahead.

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