Increased Active Vitamin D Impacts Blood Calcium Levels By
Vitamin D is a vital nutrient that plays a significant role in our overall health. It is responsible for maintaining strong bones, regulating the immune system, and supporting various bodily functions. One of the primary functions of vitamin D is to regulate the levels of calcium in our blood. Vitamin D aids in the absorption of calcium from our diet, and without it, our bodies cannot absorb enough calcium to maintain healthy bones and teeth.
What is Active Vitamin D?
Vitamin D is available in two forms: D2 and D3. When we consume vitamin D through our diet or supplements, it is in the form of D2 or D3. However, our bodies cannot use vitamin D in this form. The liver and kidneys convert vitamin D2 and D3 into active vitamin D, also known as calcitriol. Calcitriol is the active form of vitamin D that regulates the levels of calcium in our blood.
How Does Active Vitamin D Impact Blood Calcium Levels?
Active vitamin D enhances the absorption of calcium from our diet in the small intestines. It also triggers the release of calcium from our bones into our bloodstream. When there is an adequate amount of calcium in our blood, the parathyroid gland releases less parathyroid hormone (PTH). PTH is responsible for breaking down our bones to release calcium into our bloodstream. Therefore, active vitamin D helps to maintain healthy bones by reducing the amount of calcium released from our bones.
What Happens When We Have Insufficient Vitamin D?
When we have insufficient vitamin D, our bodies cannot produce enough active vitamin D. This, in turn, affects the levels of calcium in our blood. Low levels of active vitamin D cause our bodies to absorb less calcium from our diet, leading to calcium deficiency. To compensate, our bodies release more PTH, which breaks down our bones to release calcium into our bloodstream. Over time, this can lead to weak and brittle bones, increasing the risk of fractures.
How Can We Increase Active Vitamin D?
There are several ways to increase active vitamin D in our bodies:
- Exposure to sunlight: Our bodies can produce vitamin D when our skin is exposed to sunlight. Spending 10-15 minutes in the sun a few times a week can help increase vitamin D levels.
- Diet: Foods rich in vitamin D include fatty fish, egg yolks, mushrooms, and fortified foods such as milk and cereal.
- Supplements: Vitamin D supplements are available in various forms, including capsules, tablets, and liquids.
Conclusion
Vitamin D is an essential nutrient that impacts various functions in our body, including the regulation of calcium levels. Active vitamin D, or calcitriol, is the form of vitamin D that regulates the levels of calcium in our blood. Insufficient vitamin D affects the production of active vitamin D, leading to calcium deficiency and weak bones. Increasing active vitamin D through sun exposure, diet, and supplements can help maintain healthy bones and overall health.