When you think bone health, what is the first nutrient you think of? I’m going to go out on a limb and guess that you said Calcium! Yep, calcium is crucial for bone health. It is the key component of hydroxyapatite, which makes of the mineral matrix that keeps you teeth and bones sturdy and strong. Our bones are also constantly breaking down and building up – and in order to properly build, they need adequate amounts of calcium. This “adequate amount” ranges from 1,000mg- 1,300mg per day depending on age and gender and mainly comes from dairy products, almonds, leafy greens, tofu, beans, lentils, and some fish fish.
Now, while calcium is the key component in bone, it pretty much is no good without its partner in crime, vitamin D. Vitamin D is needed for calcium absorption, so no matter how much calcium you eat (or drink), your body isn’t absorbing much of it if you lack vitamin D. Vitamin also helps in that bone remodeling (breakdown and building) process I mentioned.
Vitamin D has become a pretty hot nutrition topic recently. In fact, vitamin D deficiency is on the verge of becoming a global public health issue. Why? Well, if you are reading this post right now, you are likely sitting inside staring at a computer or phone screen as opposed to soaking up the sun’s UV rays. Our primary source of vitamin D comes from the sun so the decreased time spend outdoors and the increased use of sunscreen that have been seen around the globe are causing vitamin D deficiency rates shoot through the roof!
There are a few food sources of vitamin D, including fortified dairy products, some fatty fish, and mushrooms, but these can’t really provide enough to meet our need of 600-800 IU per day (and most people need up to 2,000 IU per day if they are deficient).
The final key player in bone health isn’t a nutrient; it is exercise!- specifically weight-baring exercise. Simply carrying the weight of your skeleton in activities like walking, running, jumping, and stair climbing all help in that formation of strong bones. Not to mention, exercise improves strength and balance, which can help decrease risk of falls and broken bones.
In addition to these top three, researches have also found that low vitamin C and vitamin K levels also put people at risk of poor bone mineralization. On the other hand, people who had diets high in fruits and vegetables were found to have stronger bones… just one of the millions of reasons to eat more fruits and veggies!
A few studies have found that high calcium intake, greater than the recommended daily intake doesn’t provide any additional benefit when it comes to bone mineral density. There have also been associations between high calcium intake (especially from supplements) and heart disease risk. Moral of the story- more calcium isn’t always better.