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Relationship between Calcium, iron and VitaminD3


Connection Between Calcium, Vitamin D3 and Iron:

Calcium, iron, and vitamin D3 are essential nutrients crucial for maintaining overall health and well-being. They play distinct yet interconnected roles in the body. Calcium is vital for bone health, muscle function, nerve transmission and blood clotting. Iron is crucial for oxygen transport and energy production, while vitamin D3 aids calcium absorption and help in bone health and immune system function. To know more about why vitamin D3 is very essential component for our body, then read this article,


Calcium is the mineral that forms the basic structure of bones and teeth. It is vital for muscle function, nerve transmission and various metabolic processes. A deficiency in calcium can lead to osteoporosis, a condition where bones become brittle and fragile. Our body needs calcium for muscles to move and for nerves to carry messages between your brain and every part of your body.

Calcium also helps blood vessels move blood throughout your body and help release hormones that affect many functions in your body. Vitamin D helps your body absorb calcium. It also plays an important role in blood clotting, helping muscles to contract and regulating normal heart rhythms and nerve functions. Dairy products (cheese, paneer, tofu, tempeh), leafy greens (spinach, kale), nuts (almonds) and seeds (sesame seeds, chia seeds), plant-based foods (soy milk, almond milk), millets (ragi and rajgira) are good sources of calcium.


It is a key component of hemoglobin of protein in red blood cells that transports oxygen throughout the body and Iron deficiency can result in anemia causing fatigue, weakness, and decreased immunity. Iron is a mineral that the body needs for growth and development. Your body uses iron to make hemoglobin and protein in red blood cells that carries oxygen from the lungs to all parts of the body, and myoglobin a protein that provides oxygen to muscles.

Iron helps to reduce tiredness and fatigue, supports good energy levels, support immunity, nourishes your skin, reduce dark circle, improve sleep quality, enhance memory, contributes to the normal formation of red blood cells and hemoglobin function, which carries oxygen around the body and improves both mental and physical performance. It is important to consume iron rich foods such as red meat, fig (anjeer), dates, spinach, black raisins, raisins, beans, fish. Vitamin C enhances HB absorption from plant-based sources.


Vitamin D3:

It is also known as sunshine Vitamin is vital for bone health as it facilitates calcium absorption in the intestines. Vitamin D is the fat-soluble vitamin that helps your body absorb calcium and phosphorus. Having the right amount of Vitamin D3, calcium and phosphorus is important for building and keeping strong bones.

Vitamin D 3 is beneficial in the production and regulation of neurotransmitters, like serotonin, which is important for mood regulation. Adequate vitamin D3 levels may help improve mood, regulate your hormones, and overall mental well-being. It also supports immune function and plays a role in cell growth and differentiation.

Vitamin D3 supplementation can lower the abnormally elevated serum AMH (anti-mullerian Hormone) levels and increase serum anti-inflammatory soluble receptor for advanced glycation end-products in vitamin D deficient woman with PCOS. Vitamin D3 is also very important to lower your bad cholesterol (LDL) and protect your heart from heart stroke. The body can produce vitamin D3 when exposed to sunlight, and it can also be obtained from supplements.


Vitamin D3 role in calcium absorption is crucial. Without sufficient vitamin D3, the body may struggle to absorb calcium efficiently, leading to potential calcium deficiencies despite adequate intake. Ensuring adequate level of vitamin D3 helps optimize calcium absorption and utilization in the body.

Iron and calcium, on the other hand, do not have a direct interaction. However, a balanced diet that includes both iron and calcium ditch foods is important for overall health. Some calcium rich foods like dairy products, inhibit iron absorption. So, it is advisable to separate iron and calcium rich meals.

It generally recommended not to consume iron rich foods at the same time. As calcium supplements, as calcium can inhibit the absorption of iron. Calcium and iron compete for absorption in the gastrointestinal tract and calcium tends to limit the absorption of iron when taken together. If you need to take both calcium and iron supplements, it is advisable to take them at separate times to maximize absorption of each nutrient.

For instance, you might take your calcium supplements in the morning and your other supplements later in the day, or as directed by a doctor. It is important to follow your doctor’s recommendation regarding the timing and doses of supplements, as they can tell or advise based on your health needs and potential interactions with other medications or supplements you may be taking. Always consult with a doctor before making changes to your supplement regimen or dietary habits. To know more about nutrition, read my latest book, the magical ways for sparkling lifestyle.

Dr.Hetal Patel


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