Skinny Was Never the Flex. Muscle Is.

Part of The Body Conversation: Muscle, Metabolism & the Future You

Can I pull up a chair and keep it real with you?

For most of our lives, we were handed one goal and told it was the only one that counted. Skinny. Smaller. Less of you. We shrank our meals, shrank our portions, and somewhere in there, got used to running on less of ourselves.

And a lot of us did it for years. Decades, even. Exhausted, hungry, and still not "there," because "there" kept moving.

So let me tell you what I wish every one of my ladies knew a whole lot sooner.

Skinny was never the flex. It was a look someone sold you, not a measure of your health. The real flex, the one that actually protects your body and your future, is strength.

Skinny Was a Look. Strength Is a Life.

One was for the mirror. The other is for the decades ahead.

Here is what nobody put on the magazine cover.

A smaller body is not automatically a healthier one. You can be thin and weak, thin and exhausted, thin and quietly losing the muscle and bone that were supposed to carry you into your 80s. "Skinny" tells you almost nothing about how strong your heart is, how stable your blood sugar is, or how well you will move at 75.

Strength tells you all of it.

So if you spent years chasing a number on a tag or a scale, please hear me: that was not a personal failure. You were aiming at the wrong target because it was the only one anyone gave you. We get to change the target now.

You Were Built to Be Uniquely You

There is no single "right" body

Now let's talk about the thing that quietly breaks so many women's hearts, the belief that there is one correct shape and yours is wrong.

Women come in every beautiful build there is. Petite and slim. Tall and lean. Shorter and stronger. Stockier and powerful. Some of us carry more in the hips and thighs, some more up top, some are long and lean, some are curvier all over. A lot of that is written into your bones, your frame, and your genetics, and no amount of dieting was ever going to override your blueprint.

That is not a flaw to fix. That is your design.

Strength looks different on every one of these bodies. On one woman it looks lean and compact. On another it looks full and solid. Neither is more "fit" than the other. The goal was never to look like someone else. The goal is to treat the body you actually have like the powerful being it is, and to make it strong with strength training for women over 40 that fit your life.

The Common Denominator: Strong and Lower Body Fat

Different bodies, same real goal

So if it is not a size, what is the actual goal?

Two things, and they fit every body type on earth.

Build strength, and lower the body fat that harms your health, especially the visceral fat around your organs. That is it. That is the common thread whether you end up slim or fuller, and are petite or tall.

One woman chasing strength and lower body fat will land somewhere lean. Another will land somewhere curvier and more solid. Both won. Because both are strong, both are metabolically healthier, and both are building a body that lasts. Same destination, different scenery, both women over 40, building muscle and strength in ways that protect their future.

Why Muscle Is the Real Flex

The receipts, straight from the research

I love this part, because the science is genuinely on your side here.

Muscle and strength are some of the best predictors we have of a long, capable life. In older adults, muscle mass and strength predict survival better than BMI does. Let that sink in. How strong you are tells us more about your future than what you weigh.

Grip strength alone is so telling that researchers use it as a marker for longevity. In one large study, women with the highest grip strength had roughly a 33 percent lower risk of death than women with the lowest. And any amount of strength training, compared to none, is linked to lower risk of dying from heart disease, cancer, and other causes.

Here is the detail I really want you to hold onto, because it drives the whole point home. In the Health ABC study, which followed adults into their 70s, the strength in the big muscles of the thighs, your quads, was strongly tied to how long people lived. But here is the kicker. The size of the muscle was not the strong predictor. The strength was. In other words, it was never about how big or small the muscle looked. It was about how much power it could actually produce. Size is the flex nobody needs. Strength in your legs is the flex that keeps you walking, rising, and living on your own terms for decades.

Meanwhile, the slow loss of muscle as we age, called sarcopenia, is tied to falls, fractures, hospital stays, and lost independence. Muscle is not vanity. Muscle is your retirement account for your body. It is the most valuable thing you can be building right now. Knowing how to prevent muscle loss during menopause with consistent weight training for women over 40, with protein, and recovery, is priceless.

Why This Matters Even More After 40

Peri-Menopause and Menopause raise the stakes

Here is why I will not let you skip this.

During Peri-Menopause and Menopause, muscle loss speeds up as estrogen declines, and daily movement often drops right along with it. So the exact thing that protects your health, your independence, and your future is the thing quietly walking out the door.

The good news is that muscle responds at every age. You are never too late, and you are never too far gone. But the sooner you start defending and building it, the more of your future you get to keep. Practically, how to prevent muscle loss in women over 40 and during menopause looks like steady strength training, adequate protein, smart sleep, and stress management.

How to Actually Build It

Simple, doable, and yours

You do not need to live in a gym or shrink your plate. You need a few honest habits, repeated.

Lift something heavy a few times a week. Eat enough protein to give your muscle what it needs. Keep moving through your day. Sleep like it matters, because it does. That is the real work, and it is far kinder than the starving you were sold. With these and building muscle, consistency will always beat perfection.

You may wonder how long it takes to build muscle in a 40 year old woman and beyond? With consistent weight training, you can feel strength gains in 2–4 weeks and see visible changes in about 8–12 weeks, with meaningful changes continuing over 3–6 months and beyond. What kills muscle gains the most? Inconsistency, too little protein, poor sleep, chronic stress, doing only cardio, and undereating, especially during menopause. These are the big culprits that stall building muscle and strength.

And you do not have to figure it out alone. This is exactly what a fitness and nutrition coach, a personal nutrition coach, or a nutrition health coach is for; meeting your unique body where it is and building a plan around it. Whether you work with someone in person or with an online nutrition coach for weight loss, a good holistic nutrition coach will always point you toward strong, not just small. A thoughtful personal weight loss coach does the same, chasing health and muscle with you instead of a lower number for its own sake. A skilled nutrition accountability coach and nutrition coach for weight loss can help you stay consistent and confident.

Final Word: Be Strong. That's the Whole Flex.

You were never meant to spend your one life disappearing.

Whatever your shape, whatever your build, the goal is the same and it is worth every bit of effort: get strong, protect your health, and treat your body like the powerful thing it has always been.

Slim or full, petite or tall, the flex was never the size. The flex is that you are strong, and you are building a body that will carry you, boldly, for decades to come. 🦋

Author: Arnetra Shettleworth, Certified Nutrition and Lifestyle Coach and Certified Menopause Coaching Specialist

Sources: "Strength, But Not Muscle Mass, Is Associated With Mortality in the Health, Aging and Body Composition Study Cohort," The Journals of Gerontology; "Associations of Muscle Mass and Strength with All-Cause Mortality among US Older Adults," PMC; Medical News Today, "Stronger Muscles May Boost Longevity, Especially in Older Females."

Butterfly Transformation Nutrition Coaching offers personal nutrition coaching and fitness coaching for women over 40 navigating Peri-Menopause and Menopause. If you're ready to trade shrinking for strength, a nutrition coach, weight loss consultant, or nutrition accountability coach can help you build a plan that fits your body and your life. Book your session at btnutritioncoaching.com.