
Now this is when vitamin D becomes confusing. Because vitamin D is needed to absorb calcium from your diet, the decreased levels will restrict the amount of calcium your body can absorb. If your calcium level is too high, the body will decrease the amount of vitamin D in order to decrease the amount of calcium that is absorbed from your intestines. The body will also want to shut down calcium absorption from your intestines, and it does this by limiting the amount of vitamin D in your body. As a result, our bodies will try to get rid of the excess calcium in the urine, explaining why every third patient will have high calcium in the urine. Hyperparathyroidism is associated with high calcium in the blood, which the body does not want. If a person takes more vitamin D, the intestines will become more efficient at absorbing the calcium molecules in our diet, and your calcium level will go up.

Increasing an individual’s vitamin D levels will simply increase the amount of calcium they absorb from their diet. Without vitamin D, most of the calcium in the milk will not get absorbed.


This is actually why milk, a rich source of calcium, is often fortified with vitamin D. If vitamin D levels are low, the intestines will struggle to absorb calcium. Vitamin D is essential to our body’s proper function we can produce it by being exposed to sunlight or from our diet. It’s also needed for bone growth, and remodeling. Vitamin D helps our intestine absorb calcium from the foods we eat and increase the amount of calcium in our bodies.
