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The main function of the vitamin (which until recently was considered the only one) is to maintain the health of bones and connective tissues. It promotes the absorption of calcium from food, helps active substances to penetrate into the bone tissue, making it stronger. However, over the past 30 years, science has discovered other beneficial properties of the "sunshine vitamin". Vitamin D is effective in boosting immunity and maintaining brain health, improving memory and concentration and improving performance. In the late 1990s, as Western medicine developed an interest in the study of mental health issues, it became clear that adequate levels of vitamin D in the blood provided effective prevention of depression. Research directly links the production of the happiness hormone serotonin with the presence of the vitamin in the body.That is why, as a rule, residents of regions where the sun may not be available for months suffer from seasonal blues.
Vitamin D and aging
More recently, scientists have found another useful ability in vitamin D - to slow down aging. With age, the ability to synthesize the "sunshine" vitamin decreases by 75% in general, which is certainly reflected in the condition of the skin. Vitamin D has antioxidant properties, which means it protects cells from free radical damage. In addition, it improves skin tone and firmness, stimulates the production of its own collagen and reduces wrinkles. In the process of aging, toxic protein aggregates accumulate in the body, which provoke the development of various “age-related” diseases: problems with the heart, vision, digestion and Alzheimer's disease. Vitamin D in its sufficient concentration destroys these harmful substances and removes them from the body, thereby contributing to an increase in life expectancy.
How do you get vitamin D?
Even a child knows that vitamin D is synthesized in the body under the influence of sunlight. Even some 50 years ago, people without exception were prescribed abundant sunbathing to avoid vitamin deficiency. However, now science has made significant progress in studying the harmful effects of ultraviolet radiation, and therefore tanning is no longer considered a panacea. Ultraviolet radiation not only gives the skin a pleasant golden hue, but also destroys collagen fibers, provokes pigmentation and can cause skin cancer. Therefore, experts recommend not neglecting SPF products (read here how to choose the right one) throughout the year, even if the weather is cloudy.
Accordingly, it is worth looking for other sources of vitamin D. Getting a sufficient portion of vitamin D from foods can also be difficult, since building a diet on only beef liver is a dubious idea, and in most other foods its concentration is negligible. For these reasons, experts recommend making a choice in favor of dietary supplements. Supplements contain vitamin D in the right amount, concentration and form that the body can absorb. The main thing is to remember that before taking any dietary supplements, it is necessary to pass tests and consult a doctor.