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Difference between Vitamin D and Calcium

Difference between Vitamin D and Calcium

You may know that Vitamin D and Calcium are both important for strong bones, but what’s the difference between them? Vitamin D is actually a hormone that the body produces when it is exposed to sunlight. It helps the body absorb calcium from food. Calcium, on the other hand, is a mineral that is necessary for bones and teeth. It can also help regulate blood pressure and heart rhythm. So, while both are important for bone health, Vitamin D is essential for helping the body to absorb calcium properly.

What is Vitamin D?

Vitamin D is a vital nutrient that helps the body to absorb calcium and phosphate from the diet, keeping bones and teeth healthy. Vitamin D is found in a small number of foods, including oily fish, egg yolks, and liver.

  • However, the main source of vitamin D for most people is exposure to sunlight. When the skin is exposed to sunlight, it produces vitamin D. Vitamin D deficiency can lead to softening of the bones (rickets) in children, and osteomalacia (bone weakness) in adults.
  • Vitamin D deficiency is relatively common, particularly in people who have dark skin, who are less able to make vitamin D from sunlight exposure, and who do not get outdoors often.
  • Vitamin D supplements are available from pharmacies and supermarkets. Vitamin D can also be found in fortified foods such as breakfast cereals and margarine.

What is Calcium?

  • Calcium is a soft, silvery-white metal that is found in abundance in the Earth’s crust. It is the fifth most abundant element in the crust, and it is an essential component of many minerals.
  • Calcium is also a vital element in the human body, and it is necessary for the development and maintenance of bones and teeth. In addition, calcium plays a role in muscle contraction, nerve function, and blood clotting.
  • Calcium is obtained from the diet, and it is also available as a dietary supplement. Calcium supplements are often taken to prevent or treat osteoporosis, a condition that causes bones to become weak and brittle. Calcium supplements are also sometimes taken to treat calcium deficiencies that can lead to health problems such as rickets.

Difference between Vitamin D and Calcium

Vitamin D and calcium are both essential nutrients for human health.

  • Both are necessary for strong bones and teeth, and Vitamin D also plays a role in regulating the body’s use of calcium. However, there are some key differences between these two nutrients.
  • Vitamin D is a fat-soluble vitamin, meaning that it can be stored in the body’s adipose tissue. Calcium, on the other hand, is a water-soluble nutrient that is excreted through the kidneys if it is not used by the body.
  • Vitamin D is also involved in immune function and cell growth, while calcium is needed for muscle contraction and blood clotting.

Finally, Vitamin D can be obtained from sunlight exposure, while calcium must be obtained through diet or supplements. Despite these differences, both Vitamin D and calcium are essential nutrients for maintaining good health.


You may be wondering what the difference between vitamin D and calcium is. Vitamin D is essential for absorbing calcium from food, while calcium helps keep bones strong. It’s important to have a good balance of both in your diet to maintain optimal health. If you’re not sure how much of each nutrient you need, consult with your doctor or nutritionist about which supplements would be best for you. Now that you know the importance of both nutrients, make sure to include plenty of vitamin D and calcium-rich foods in your next meal plan!

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