A lack of vitamin D may impair the immune system, making people more prone to infections and recurrent diseases.
Lack of energy, weakening in the muscles, and persistent exhaustion are symptoms of vitamin D insufficiency.
Vitamin D deficiency can result in muscular pains, soreness, and trouble moving, as well as discomfort in the bones and joints.
Neurotransmitter activity is influenced by vitamin D, and a lack of it can worsen mood disorders such sadness, anxiety, and (SAD).
Although this symptom is less often and can be brought on by a number of different sources, vitamin D insufficiency can occasionally cause hair loss or thinning.