Importance of Vitamin D in Human Body

As we know The human body produces vitamin D as a reaction to sun exposure. A person can also increase his vitamin D intake through certain foods or supplements.

Vitamin D deficiency is being found in most people nowadays. Because we do not try to get this essential vitamin. While vitamin D is the easiest to obtain. As soon as you are exposed to sunlight or your skin is exposed to sunlight, the process of manufacturing vitamin D in your body starts. 

Vitamin D is actually a group of fat-soluble pro-hormones that gather in body fat. The role of vitamin D is very important in maintaining calcium and phosphorus levels in our body. Vitamin D serves as a steroid to transport calcium from the hands to the bones. 

Types of Vitamin D

Vitamin D can be divided into 5 parts – Vitamin D-1, Vitamin D-2, Vitamin D-3, Vitamin D-4, and Vitamin D-5. All these vitamins contribute greatly to the health of our body. Vitamin D also plays an important role in the absorption of calcium, smooth care of the immune system, and complete growth and control of bones and cells. Apart from this, vitamin D is also helpful in reducing inflammation in body parts.

Benefits of Vitamin D

Vitamin D has several roles in the body:

  • Promoting healthy bones and teeth.
  • Supporting immune, brain, and nervous system health.
  • Regulating insulin levels and supporting diabetes management.
  • Supporting lung function and heart health.
  • Affecting the expression of genes involved in the development of cancer.

Read about these benefits in more detail:

1- Healthy bones:

Vitamin D plays a key role in the regulation of calcium and the maintenance of phosphorus levels in our blood. These components are important for maintaining healthy bones.

People intake vitamin D to allow the intestines to stimulate and absorb calcium and reclaim calcium that the kidneys would otherwise emit.

Vitamin D deficiency in children can cause rickets, which leads to a severely bent appearance due to softening of bones.

Similarly, in adults, vitamin D deficiency manifests as osteomalacia or bone softening. Osteomalacia results in reduced bone density and muscle weakness.

A vitamin D deficiency can also present as osteoporosis, for which more than 53 million people in the United States either seek treatment or face an increased risk.

2. Low flu risk:

A 2018 review of existing research suggested that some studies found that vitamin D had a protective effect against the influenza virus.

Further research is necessary to roll out the protective effect of vitamin D on the flu.

3. Healthy baby:

Vitamin D deficiency has high blood pressure in children. A 2018 study found a possible association between low vitamin D levels and stiffness in children’s artery walls.

The American Academy of Allergic Asthma and Immunology (AAAAI) suggests that evidence points to a relationship between low vitamin D risk and increased risk of allergic sensitization.

An example of this is children who live close to the equator and have a low rate of hospital admission for allergies and low prescriptions for epinephrine autonomicators. They are also less likely to have a peanut allergy.

AAAAI also exposes an Australian study of egg intake. Eggs are a common early source of vitamin D. Children who started eating eggs after 6 months were more likely to develop food allergies than children between 4 and 6 months of age.

4. Healthy pregnancy:

A 2019 review suggests that pregnant women who lack vitamin D may have a higher risk of developing and giving birth to preeclampsia.

Doctors also associate poor vitamin D conditions with gestational diabetes and bacterial vaginosis in pregnant women.

In a 2013 study, The researchers combined high vitamin D dose during pregnancy with an increased risk of food allergies in the baby during the first 2 years of life.

5. Vitamin D reduces depression:

Research has shown that vitamin D can play an important role in regulating mood and eliminating depression. In one study, scientists found that people with depression receiving vitamin D supplements saw an improvement in their symptoms.

In another study of people with fibromyalgia, researchers found that vitamin D deficiency was more common in people who were experiencing anxiety and depression.

6. Vitamin D boosts weight loss:

If you are trying to lose weight or prevent heart disease then consider adding vitamin D supplements to your diet.

In another research, overweight people who intake daily vitamin D supplements improve their heart disease risk markers.

Beware of vitamin D deficiency.

Many factors can affect your ability to get a sufficient dose of vitamin D through the sun alone. These factors include:

  • Being in an area with high pollution.
  • Using sunscreen.
  • Spend more time indoors.
  • Live in large cities where buildings prevent sunlight.
  • Having deep skin. (The higher the melanin level, the lower the skin can absorb vitamin D.).

These elements contribute to vitamin D deficiency in an increasing number of people. Therefore it is important to get some of your vitamin D from sources other than sunlight.

Symptoms of vitamin D deficiency may include:

  • Regular illness or infection.
  • Fatigue.
  • Bone and back pain.
  • low mood.
  • Impaired wound healing.
  • Hair loss.
  • muscle pain.

If vitamin D deficiency continues for a long time, it can result in complications, such as:

Sources of Vitamin D.

Taking enough sunlight is the best way to produce enough vitamin D in our bodies. Vitamin D includes food sources:

  • Fatty fish, such as salmon, mackerel, and tuna
  • Egg yolk.
  • cottage cheese.
  • dark chocolate.
  • Beet and sweet potato.
  • Mushroom.
  • fortified milk.
  • fortified grains and fruit juices.


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