Many women are surprised when they’re told they have osteopenia in their 50s. They often wonder how it happened so quickly. The truth is, it didn’t.
Bone loss is a gradual process that begins long before most people realise. But here’s the encouraging part: your 40s and 50s are one of the most important times to influence your future bone health.
Why midlife matters?
Age-related bone loss starts in our late 30s – yes, you read that right. We achieve our peak bone mass in our late 20s to early 30s, and from then on, we go through a gradual, age-related decline. How much we lose depends on many factors – our activity level, our diet, our hormones and other factors. When we start going through perimenopause during our 40s, bone loss accelerates because estrogen starts fluctuating and eventually declines.
Think of your 40s and 50s as a window of opportunity. The choices you make during these years can influence not only your bone density, but also your strength, mobility and independence for decades to come.
The good news
However, while bone loss accelerates during perimenopause, this doesn’t mean it’s inevitable or that there is nothing you can do to prevent at least some of it. In fact, the years leading up to and around menopause provide an important opportunity to build habits that can significantly influence your bone health in later life.
What happens during your 40s and 50s?
Estrogen plays an important role in the constant remodelling process that our bones go through throughout life. It slows the activity of the bone breakdown cells (osteoclasts) and supports the survival of the bone building cells (osteoblasts). When we go through perimenopause, the decline of estrogen results in more bone being broken down than rebuilt. This is why many women lose somewhere between 10-20% of their bone density within the first 5-7 years after menopause.
At the same time, we also go through age-related muscle loss – unless we actively maintain it. Maintaining muscle or building new muscle through exercise can be difficult as many women become less active due to busy lives, being fatigued or injuries. However, we can’t afford to lose muscle, so incorporating some resistance training is crucial.
Your body also needs the right building blocks. While calcium often gets all the attention, healthy bones depend on much more than that. Adequate protein helps maintain both muscle and bone, while nutrients such as vitamin D, vitamin K, magnesium and calcium all play important roles. Eating enough overall—and choosing a varied, nutrient-dense diet—provides your body with the raw materials it needs to keep rebuilding bone throughout life.
We also need to ensure that our guts are healthy. The absorption of the afore mentioned nutrients depends on healthy digestive function. Low stomach acid, dysbiosis (microbial imbalance), conditions like IBS, Crohn’s or coeliac disease, or intestinal inflammation can reduce absorption, leaving bones under-nourished — even if your diet appears excellent. This is one of the reasons I always assess gut health as part of my bone health program. Supporting digestion and absorption helps ensure your body can actually use the nutrients you’re eating.
You are not just protecting your bones
When you invest in your bone health today, you’re also investing in your future ability to:
- Travel confidently
- Carry your own luggage and shopping
- Go hiking or enjoy long walks on the beach
- Spend time in the garden
- Lift and play with your grandchildren
- Keep exercising and maintaining your strength
- Live independently in your own home
That’s what strong bones really give you.
Six Investments Your Future Self Will Thank You For
So what can we do now to make sure that are fit enough in our 70 and 80s to do all the things mentioned above?
- Strength training – 2-3 session a week with heavy weights (it will be worth investing in a personal trainer for at least the first few weeks to ensure you are lifting the right way)
- Adequate protein – Many women would benefit from aiming for around 1.2–1.6 g/kg/day, depending on their age, activity level and health goals. Working with a health professional can help determine what’s appropriate for you.
- Good overall nutrition – protein is not the only nutrient that matters!
- Gut health – without good gut health, nothing is going to work well
- Sleep – this is when much of your body’s repair and recovery takes place. Poor sleep also makes it harder to exercise well, recover and make healthy food choices.
- Stress management
The most important thing here is to recognise that all of the above points are important. Together they achieve the desired outcomes.
Many women think bone health only becomes important once osteoporosis has developed.
In reality, your 40s and 50s are one of the greatest opportunities to influence how active, mobile and independent you’ll be in the decades ahead.
You don’t have to wait for a diagnosis to start looking after your bones.
Every healthy meal, every strength-training session and every positive lifestyle choice is an investment in your future self.
Your future isn’t determined by your age—it is shaped by the choices you make today.
In my next article, I’ll explore one of the biggest myths in bone health—that calcium is all you need. We’ll look at the nutrients that really matter and why building healthy bones requires much more than a glass of milk.
Want personalised support?
Every person has different risk factors, dietary habits, hormone changes and health history.
My Bone Health Program takes a personalised, whole-person approach, looking beyond bone density alone to understand the factors influencing your long-term bone health.
Together we’ll assess your nutrition, gut health, hormones, lifestyle and movement to create a practical plan that supports strong bones—and healthy ageing.
👉 Learn more about my Bone Health Program or book a free discovery call.
