Your Bones Dissolve When You Train - OsteoSignal #039

Your bones dissolve a little every time you train. Sound alarming? Here's the twist: this is normal. Sweat and working muscles drain calcium from your blood. Your body protects your heart first and pulls calcium from your bones to refill the supply. Cyclists, rowers, and swimmers lose the most, since their sports give bones little impact to rebuild. Two clinical trials found a calcium-rich meal about an hour before training nearly stops the loss, for more than three hours afterward. On this episode of OsteoSignal, Neal O'Neal explains the science. He shares the story of a cyclist whose stubborn shin pain eased in six to eight weeks. He also gives a simple food plan you can start tomorrow. Your breakfast might matter more than your recovery gear. Key Concepts Blood calcium is your checking account and your bones are your savings. Your body always raids savings to keep the checking account full. Hard training drains blood calcium through sweat and working muscles, and your parathyroid hormone then signals your bone to dissolve. Bone rebuilds slower than bone breaks down, so daily losses add up to lower bone density over the years. Cycling, rowing, and swimming give bone little impact, so rebuilding signals stay weak while calcium loss continues. Calcium also triggers the cell signals behind training gains, so low calcium dulls your results. Key Takeaways Eat 1,000 to 1,350 mg of calcium from food 60 to 90 minutes before training, because your gut absorbs calcium poorly during exercise. Add another calcium snack for every 90 minutes of hard effort, or before a second session five or more hours later, to keep blood calcium steady. Hit your daily calcium target every day (about 1,000 mg for most adults, more for postmenopausal women and teens), since you will not bank a week of calcium in one day. If you train fasted and have lingering bone or shin aches, try Greek yogurt, milk, cheese, fortified plant milk, tofu, or sardines with bones before you start. Ask for a comprehensive metabolic panel with calcium when you have night cramps, tingling, brittle nails, or stubborn aches, and ask athletes what they eat before training. 🔔 Subscribe so you never miss an episode. The body doesn't organize itself into silos, and neither should your approach to healthcare. https://tinyurl.com/OS039transcript OsteoSignal with Neal D. O'Neal, PT is a podcast exploring how your body's natural design connects with osteopathic science - translating complex signals into practical insight so you can truly thrive. Disclaimer: The content of this podcast is for information purposes only and should not be considered medical advice. Discuss any medical procedure with your health care provider. For more information about the content of this episode, visit https://pursuitpt.com or https://pursuitperformancetraining.com. Copyright © 2026 Neal D. O'Neal, PT Music by Audiogreen: https://pixabay.com/users/audiogreen-... From Pixabay: https://pixabay.com//?utm_source=link... Used with permission