https://www.sciencedirect.com/science/article/pii/S0002916523058185
https://www.sciencedirect.com/science/article/pii/S0002916523061889
I was curious so I searched to see if I could find any studies. These two studies seem to suggest that increased protein does help with improving bone mineral density, but both say also taking calcium is required.
https://www.sciencedirect.com/science/article/pii/S002231662215697X
This article is quite interesting. In this study, high protein resulted in hypercalciuria without effect on the parathyroid. The hypercalciuria was caused by more calcium being absorbed by the digestive tract. Low protein actually resulted in “secondary hyperparathyroidism” which caused a reduction in intestinal calcium absorption. The conclusion was that low protein diets can be detrimental to bone health.
It doesn’t seem they did any testing on actual bone mineral density (BMD), but they did include a graph from another study that showed better femoral bone density in women who ate more protein.
So… that brings me back to the question: Is it REALLY age or once again lack of proper nutrition (in this case protein) resulting in much of the bone density loss?
I understand that we all age, but how much of aging is really just not adjusting our nutrition was we get older?