The Bone Builder System

Welcome to The Bone Builder System. I'm Sarah Mapes, a BoneFit certified yoga instructor who has trained with Dr. Fishman in teaching yoga to help strenghten bones. I am also a certifed nutrition coach trained through The Institute for Integrative Nutrition.

On this channel we talk about all things related to bone health, osteoporosis and health and wellness for postmenopausal women. I also offer personal health coachign and online courses and memberships about nutrition and fitness for bone health.


The Bone Builder System

🥛🦴 New Video Is Live!


If you drink plant-based milk and don’t shake the carton first, you might not be getting the calcium you think you are.


And that matters — because bone doesn’t respond to labels. It responds to biology.

In today’s video, I break down:
✔️ How plant-based milks actually work for bone health
✔️ Why calcium fortification isn’t the same as naturally occurring calcium
✔️ Why protein, vitamin D, and magnesium matter just as much
✔️ How to make plant-based milk work better for your bones


This isn’t about telling you what to drink — it’s about helping you understand what your bones need to use calcium well.



Let me know in the comments — do you usually drink dairy or plant-based milk?

1 week ago | [YT] | 8

The Bone Builder System

Is walking enough for bone health?


Walking does help your bones—but not all bones in the same way.


In today’s video, I explain:
✔️ Why walking helps the hips
❌ Why it’s quiet for the spine
🦴 What needs to be added to fully support bone health


If you’ve been told to “just walk” and still feel uncertain, this one is important.

2 weeks ago | [YT] | 15

The Bone Builder System

If you’re eating calcium, taking vitamin D, and still seeing bone loss — this may explain why.


Calcium doesn’t go straight from your plate into your bones. It has to be broken down, absorbed, and directed into bone — and that process often breaks down quietly.


I just posted a new video explaining:
• Where calcium commonly gets stuck
• Why more calcium isn’t usually the answer
• What actually helps calcium reach bone



If you’ve ever been told “your calcium levels are fine” but your bone density says otherwise, this video is for you.

1 month ago | [YT] | 17

The Bone Builder System

⚠️ Are you doing these 3 risky moves with osteoporosis?


My latest video breaks down the top 3 exercises to avoid (and what to do instead).

Forward flexion, twisting with load, and high-impact jumps can all stress fragile bones — but the good news is, there are simple, safer swaps that still build strength.



Question for you:
👉 Which move do you find hardest to modify — core work, twisting, or impact?

2 months ago | [YT] | 10

The Bone Builder System

New video is live! 🦴✨
Top 5 Foods You Thought Were Good for Bones (But Aren’t) — and simple swaps to make them bone-friendly.

Let me know if any of these surprised you.

Sarah

3 months ago | [YT] | 7

The Bone Builder System

🌟 Introducing Bone Builder Monthly Workshops! 🌟

October Session: Supplements for Bone Health

If you’ve ever wondered which supplements actually move the needle for stronger bones — and which ones are a waste of money — this workshop is for you.

I’ll walk you through:
🦴 The essential nutrients your bones truly need
💊 How to build a simple, science-backed supplement routine
🚫 Common mistakes that can block absorption or even backfire
💰 How to choose high-quality brands that fit your budget

Whether you’re on medication, hormone therapy, or simply working on bone strength naturally, you’ll leave knowing exactly what to take (and why).

🗓 Live Friday, October 17 at 1 PM Eastern
💻 Can’t attend live? You’ll get the full replay with your registration.
😄 Investment: Only $47
🎟 Learn more here: about.bonebuildersystem.com/monthly-workshop

Let’s take the guesswork out of supplements so you can focus on building stronger bones — confidently and safely. 💪

3 months ago | [YT] | 2

The Bone Builder System

💪 Are you in the 46% of older adults falling short on protein?

Low protein doesn’t always look dramatic — sometimes it shows up as fatigue, weaker muscles, or hair and nails that just aren’t the same. In my newest video, I’m sharing the 5 red flags that signal you might need more protein (and how to fix it!).


Let’s make sure your body has the building blocks it needs for strong muscles, steady energy, and better bones. 💛

3 months ago | [YT] | 7

The Bone Builder System

🦴 New video alert! Scientists just found a tiny “bone switch” that helps your bones listen to exercise — and it could explain why strength training works so well for osteoporosis.

In this week’s video, I’ll unpack what this “bone switch” (called GPR133) really does, what’s proven so far, and how you can use that science to build stronger bones naturally.

💪 Let’s talk — what’s your favorite strength or balance exercise right now? Share it in the comments!

3 months ago | [YT] | 13

The Bone Builder System

✨ New Video! ✨

Most people think bone loss can’t be reversed without medication… but one of my clients just improved her spine bone density by 9%—with resistance bands, light weights, and simple nutrition. 💪

Her story proves that small, consistent steps really do build stronger bones. 🐢💜

Question for you: Do you find it easier to stay consistent with exercise, nutrition, or sleep? Tell me below—I’d love to hear! 👇

4 months ago | [YT] | 15

The Bone Builder System

Do you really need calcium supplements? Or are they doing more harm than good?

I just uploaded a new video breaking down what the science actually says about calcium. We’ll cover:
👉 Why U.S., U.K., and Asian guidelines are so different
👉 Which foods give you the most absorbable calcium
👉 The real risks and benefits of supplements
👉 My “Food First • Fill the Gap • Smart Dosing” framework

Comment under the video and tell me: What’s your go-to calcium-rich food—kale, tofu, sardines, or something else?

4 months ago | [YT] | 3