Michelle Patrick / EyeEm
Vitamin D is essential for a range of physical functions, as the body needs it to help it regulate the amount of calcium and phosphate inside it, in addition to maintaining healthy bones, teeth, and muscles.
It is known that vitamin D is the only vitamin that the body can manufacture and the skin can produce it from cholesterol under the influence of sunlight, provided it is exposed for 20 minutes a day, otherwise symptoms of vitamin D deficiency will occur.
As the weather changes and the daylight hours are shorter in the winter months, many do not get enough vitamin D from the sun, and this is the time when the mood will change.
And if a person suffers from a depressed mood, this may be a warning sign of vitamin D deficiency, the lack of which sometimes leads to bone abnormalities such as rickets or osteoporosis in adults, so knowing the early signs of vitamin D deficiency is ) Very important.
One study revealed that vitamin D deficiency is associated with depression, especially in older adults, which requires taking nutritional supplements to avoid the risk of lacking this vitamin.