Dr. Olesya Savelyeva declared that rapid fatigue and brittle nails indicate a lack of vitamin D in the body.
In an interview with Izvestia newspaper, the doctor points out that vitamin D contributes to many important processes taking place in the body, and is responsible for mood stability and good health.
She says: “Vitamin D is an essential fat-soluble secosteroid (chemical compound) that can be produced in the body when exposed to sunlight or with foods. This vitamin is responsible for regulating mineral metabolism in the body, supporting the immune system, and is essential for the growth and health of bones and the functioning of the heart and blood vessels. And to reduce inflammation as well as for the functioning of the thyroid gland and normal blood clotting.Finally it provides stability of mood and a good state of health."
And she adds, "Fatigue, depression, a weak immune system, weight gain, brittle nails and hair, excessive sweating, muscle weakness, sleep disturbances, rapid fatigue, and mood swings are all signs that indicate a lack of vitamin D in the body."
And the doctor points out that the body gets vitamin D with the foods and supplements that the person eats. The body also produces it when exposed to sunlight, as 15-30 minutes are sufficient to produce the body's daily need of it.
And she adds, "The most important sources of vitamin D are dairy products, mushrooms, fatty fish, and egg yolks. When you need to compensate for its deficiency, you must first consult a doctor who determines the appropriate dose of it."
Source: newspaper "Izvestia"