When most people think about muscle, they think about strength.
Maybe they picture lifting weights, improving athletic performance, or simply staying mobile as they age.
But what if I told you that muscle is much more than something that helps you move?
In recent years, researchers have begun describing skeletal muscle as one of the body’s largest endocrine organs. In other words, muscle doesn’t just respond to the rest of the body—it actively communicates with it. Every time you contract your muscles through walking, gardening, resistance training, or climbing the stairs, they release signaling molecules called myokines. These chemical messengers influence metabolism, support immune regulation, and help coordinate how different systems throughout the body work together.
For people living with autoimmune disease, this changes the conversation.
Exercise isn’t simply about burning calories or maintaining a healthy weight.
It’s about creating an internal environment that supports healing.

The Connection Between Muscle and Inflammation

Autoimmune diseases are characterized by an immune system that has become dysregulated. While medications often play an important role in calming inflammation, our daily habits also influence how resilient our bodies become over time. Muscle is one of those habits made visible. Healthy muscle tissue improves insulin sensitivity, helps regulate blood sugar, supports healthy body composition, and encourages the release of anti-inflammatory signaling molecules during physical activity. Perhaps just as importantly, stronger muscles make everyday life easier.

When your muscles are stronger, your joints don’t have to work as hard. Balance improves. Walking becomes easier. Fatigue often feels more manageable because everyday tasks require less effort. This is one reason I encourage patients to think beyond the number on the scale. A healthier body isn’t necessarily a smaller body. It’s often a stronger one.

Autoimmune Disease Can Make Muscle Loss Easy to Miss

One of the challenges of living with an autoimmune condition is that muscle loss can happen gradually.
Pain discourages movement.
Fatigue makes exercise feel overwhelming.
Joint stiffness limits activity.
Periods of disease flare may require days or weeks of rest.
Over time, the body naturally begins adapting to that reduced activity by losing muscle mass.
Some medications, particularly long-term corticosteroids like prednisone, may also contribute to muscle weakness.
The frustrating part is that losing muscle often makes autoimmune symptoms feel worse.
Simple activities become more tiring. Balance declines. Joints lose some of the support muscles normally provide. Recovery after illness or injury takes longer. It’s a cycle that many patients experience without realizing what’s happening.
The encouraging news is that muscle is remarkably adaptable.
No matter your age, your body retains an incredible ability to build and strengthen muscle when given the right support.

Muscle Supports Metabolic Health

One of the most exciting areas of research today is the relationship between metabolic health and inflammation.
When we hear the phrase “metabolic health,” many people think only about diabetes.
In reality, it includes much more than blood sugar.
Healthy metabolism involves how efficiently our bodies produce energy, regulate hormones, process nutrients, and maintain a healthy balance between energy intake and expenditure. Muscle plays a central role in all of these processes. It acts as one of the body’s largest reservoirs for glucose, helping remove sugar from the bloodstream after meals and reducing the demand placed on insulin. As metabolic health improves, many of the systems involved in chronic inflammation begin functioning more efficiently as well. This doesn’t mean building muscle cures autoimmune disease. But it does create a healthier physiological environment—one that’s better equipped to support the immune system.

Strength Training Is About Longevity, Not Appearance

Unfortunately, many people avoid strength training because they associate it with bodybuilding or spending hours in the gym.
That couldn’t be further from the truth.
Building muscle doesn’t require becoming a competitive athlete.
For most people, it means challenging your muscles consistently in ways that are appropriate for your current abilities.
Resistance bands.
Bodyweight exercises.
Light dumbbells.
Pilates.
Carrying groceries.
Working in the yard.
Even getting up from a chair repeatedly can become a meaningful strength exercise for someone who has been inactive.
The goal isn’t to look a certain way.
The goal is to preserve your ability to do the things you love for decades to come.

Nutrition Builds the Foundation

Movement stimulates muscle growth, but nutrition provides the raw materials.
I encourage patients to focus less on chasing trendy supplements and more on building meals around whole, nutrient-dense foods.
A predominantly plant-based eating pattern rich in beans, lentils, soy foods, vegetables, fruits, nuts, seeds, and whole grains provides fiber, antioxidants, and phytonutrients that support both muscle health and a diverse gut microbiome. For those who include animal foods, seafood can provide high-quality protein along with omega-3 fatty acids that support a healthy inflammatory response.
Equally important is eating enough protein throughout the day, especially as we get older.
Rather than viewing food as simply fuel, think of every meal as an opportunity to provide your body with the building blocks it needs to repair and maintain healthy tissue.

Start Where You Are

One of the biggest mistakes people make is believing they need to overhaul their entire lifestyle overnight.
If you’ve been inactive for months because of pain or fatigue, your starting point may simply be a ten-minute walk.
It may be a few gentle bodyweight exercises.
It may be working with a physical therapist or certified trainer who understands autoimmune conditions.
Progress doesn’t happen because of one perfect workout.
It happens because we show up consistently.
Our muscles respond remarkably well to small challenges repeated over time.

Building Resilience From the Inside Out

One of the guiding principles of integrative medicine is that health isn’t created by any single intervention.
It’s built through the interaction of many healthy systems working together.
Quality sleep helps muscles recover.
Movement supports metabolic health.
A plant-rich diet nourishes the gut microbiome.
Time outdoors reduces stress and supports circadian rhythms.
Each healthy habit strengthens the next.
That’s why I don’t think of muscle as something separate from autoimmune care.
I think of it as one of the body’s greatest allies.
The stronger and healthier your muscles become, the more resilient your body becomes as a whole.
While medications may still be an important part of treatment, they’re only one piece of the picture.
Building muscle won’t eliminate autoimmune disease—but it can help create an internal environment that supports healing, preserves independence, and improves quality of life for years to come. And in many ways, that’s exactly what integrative medicine is all about.