Bone Health More Than Calcium, Strength Training, and DEXA Scans
Two months ago, I had a long-awaited and planned total knee replacement. One of the reasons I chose to do the replacement now instead of continuing to wait is that I have some osteopenia in the hip of the leg with my knee issues. I found I was continually offloading my weight off that knee, and my DEXA scans showed the effect. As I progress through healing and mobility work, I am starting to resume strength training to rebuild muscle and bone, restore gut health after post-surgery antibiotics, and continue working on sleep and stress management.
Bone Health is Complex
When we think about bone health, most of us think about calcium, strength training, and DEXA scans. But bone health is far more complex.
Bones are living, dynamic tissue. They respond constantly to signals from our hormones, immune system, gut, muscles, and inflammatory pathways. This means there is a lot we can do, especially in midlife, to slow bone loss and support strength over time.
Why Bone Health Changes in Midlife
During perimenopause and menopause, declining estrogen levels affect bone remodeling (the balance between bone breakdown and formation), calcium absorption and retention, muscle mass and strength, and inflammation. At the same time, chronic stress, poor sleep, gut issues, and blood sugar instability can quietly accelerate bone loss.
The good news is that there are many ways we can help prevent bone loss, stabilize it, and even rebuild bone. While menopause hormone replacement therapy is one way to help, diet and lifestyle habits are key.
Inflammation
Bone health is deeply connected to the immune system. Chronic, low-grade inflammation activates cells that break down bone (osteoclasts) and suppresses bone-building cells (osteoblasts). We want a balance here. Inflammation also increases oxidative stress in bone tissue
Inflammation can be driven by many things, including blood sugar swings, gut imbalances, chronic stress (which elevates cortisol), autoimmune activity, and poor sleep.
When we look at health imbalances from a root-cause perspective, adding a calcium supplement and strength training to your day will not solve the problem if the issue stems from underlying inflammation or something else.
Gut Health
Our gut plays a critical role in bone health by influencing the absorption of calcium, magnesium, and phosphorus; vitamin D metabolism; immune regulation and inflammation; and estrogen metabolism and reabsorption.
Intestinal permeability, IBS, SIBO, celiac disease, or long-term acid-suppressing medications can also impair nutrient absorption, which can lead to increased fracture risk.
Supporting gut health often includes eating fermented foods (probiotic-rich foods such as yogurt, kimchi, sauerkraut …), foods rich in fiber, colorful plant foods, adequate protein, zinc, vitamin D, and omega-3 fatty acids, and addressing digestive symptoms rather than ignoring them. Wishing them away or being ok with something uncomfortable or embarrassing does not have to be a given.
Optimal Nutrition for Bones
Protein makes up a significant portion of bone structure and is essential for bone matrix formation and muscle strength, which helps protect us from falls. When many of my new clients first come to me, we assess their diet and discover that they are undereating protein, especially at breakfast.
Calcium matters, but it works best when balanced with other minerals such as magnesium, phosphorus, potassium, and trace minerals, and vitamins such as Vitamin D and K3. Vitamin D supports calcium absorption and immune balance. Many of us are low in vitamin D, and it is important to get our levels checked at least yearly.
Exercise
We often hear about strength training or lifting heavy weights as the only way to support strong bones, but bone-supportive activities include weight-bearing exercise (walking, hiking), balance and coordination work (to reduce fall risk), and resistance training (weights, bands, bodyweight).
Muscle and bone health are inseparable. Protecting one protects the other. I love riding my bike. It is great for my cardiovascular health, but not for my bone health. Over time, I have come to enjoy strength training, but it has taken some time and experimentation. You don’t have to go to a gym or do an activity that you don’t enjoy. That said, you might find something you didn’t expect to enjoy if you give it a try. Think about bringing a friend along, too.
Chronic Stress
Chronic stress elevates cortisol, a stress hormone. Short bouts of stress can help build bone (for example, through heavy lifting), but chronic stress elevates cortisol, which increases bone resorption, reduces calcium retention, interferes with sleep, and disrupts blood sugar regulation.
We can’t get rid of the stress in our lives, but we can find ways to manage it. Everyone has different tools: from meditation to playing music, crafting, and journaling. Experiment with different tools that help support your nervous system.
A Whole-Body, Root-Cause Approach
Functional medicine takes a whole-body, root-cause approach to preventing bone health issues. Bone health is a reflection of how well your entire system is supported.
If you’re concerned about osteopenia, osteoporosis, or simply want to protect your bones as you age, you don’t need to navigate this alone. Thoughtful, individualized support can make a meaningful difference, especially when started early.
If you’d like to explore how nutrition, lifestyle, and inflammation intersect in your bone health, I’d be happy to talk.



BarbaraSobel2025

@barbarasobel

© Barbara Sobel Nutrition 2020
BarbaraSobel2025