5 Signs Your Child May Have a Vitamin D Deficiency

Many people are vitamin D deficient, but do not know. Vitamin D fortified foods may not provide enough of the essential vitamin. Vitamin D is actually best obtained through your skin from sun exposure, so this may be increasingly difficult during colder, darker months. The following are a few signs that your child may have a vitamin D deficiency.

Depression and Moodiness


Serotonin levels increase in response to sunlight and decrease when sun exposure is low. When serotonin levels are low, children can seem depressive or moody. If there are no obvious problems causing your child to feel low, vitamin D deficiency may be at the root of the issue.

Head Sweats

sweaty head child

One of the first and most recognizable signs of a vitamin D deficiency is a sweaty head. In children, a sweaty head may be a sign of rickets, a disease that develops because of extreme vitamin D deficiencies.

Muscle Weakness or Pain

muscle pain child

Muscle weakness and pain are often misdiagnosed as another disorder or disease, but can be caused by a vitamin D deficiency. A vitamin D deficiency affects the body’s ability to supply calcium to the bones, which can cause aches and weakness.


Portrait of cute lad sleeping with his head on copybooks in classroom

The body needs vitamin D to produce energy, so a deficiency can make your child feel tired. If you notice that your child is going to bed earlier, waking up later, or acting sleepy in spite of getting enough sleep, it may be good to get his or her vitamin D levels checked.



Psoriasis is a common skin disorder that can be caused by low vitamin D levels. Even when psoriasis is not caused directly by low vitamin D levels, vitamin D can be used to treat the disorder. Psoriasis can worsen over time, so it is important to increase vitamin D consumption at the first signs of this disease.

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