How does vitamin D deficiency affect your body?

The human body makes use of various nutrients, proteins and vitamins to stay healthy. Vitamin D is one of the most necessary, however, its importance is often ignored and many people end up deficient in the substance.

Thinking about it, we created this post to explain a little more about it and how the lack of vitamin D affects the body. Check out!

What is vitamin D for?

The main function of vitamin D is to facilitate the absorption of calcium and phosphorus in the bones and intestines. However, it also controls more than 250 genes, including cells in the cardiovascular system, and prevents diseases such as cancer . Because of this, its consumption is essential to keep health up to date.

What are the impacts of vitamin D deficiency?

As mentioned above, vitamin D is essential for various body functions and, therefore, the lack of the substance can affect the human body in several ways. The following are the main problems that can happen:

Weakening of bones

Vitamin D is one of the main substances responsible for the absorption of calcium by bones. When there is a lack of it, the use of calcium can decrease about 30%, impairing the strengthening of bones and, often, causing diseases. In children, nutrient deficiency can cause rickets; in adults, osteoporosis is common  –  especially in the elderly.

Whenever there is a need for calcium supplementation, vitamin D is also recommended to act on absorption, and this demonstrates how important and necessary the combination of the two is.

Low immunity

The low amount of vitamin D in the body can also affect immunity. The substance benefits the absorption of other nutrients that help in the prevention of diseases, such as vitamin C.

Deficiency in children can increase the chances of developing respiratory diseases and, in adults, the contraction of flu and colds.


Vitamin D deficiency also affects people who suffer from depression. The low amount of the substance in the body can increase the chances of relapse of the disease. Because of this, supplementation of the substance and regular examinations to check the amount present in the body are recommended.

Heart disease , pregnancy risks, breathing problems, infections and diabetes are some more conditions that can be caused by vitamin D deficiency. Deficiency of the substance can be diagnosed through a blood test ordered by doctors.

What are the sources of vitamin D?

Vitamin D can be acquired in several ways, the main source of which is sunlight, so exposure to 15 to 20 minutes per day is recommended, especially in the arms and legs. The best time to sunbathe is from 10 am until 4 pm, when the sun’s incidence is highest.

Another way to absorb the substance is through food. Certain foods, such as beef liver, eggs, butter, cheddar cheese, cod liver oil, sardines and canned tuna, are some options rich in vitamin D that should be included in your routine.

Another option is vitamin D supplements  –  they can be found ready-made or ordered at compounding pharmacies and are a great option for those who cannot or do not have time to sunbathe daily. It is important to go to the doctor for a check-up at least once a year. It is he who will diagnose vitamin D deficiency and indicate replacement.


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