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Vitamin D helps your body absorb calcium, which is essential for bone health. If your bones or lower back hurt without a clear cause, it might be your body signaling that calcium absorption is compromised due to low vitamin D levels.
3. Frequent Infections
A strong immune system relies on sufficient vitamin D. People with low levels may notice they catch colds, flu, or other infections more frequently. Vitamin D helps activate T-cells, the immune system’s first responders, to fight off invading pathogens.
4. Depression or Low Mood
Studies suggest a link between vitamin D deficiency and mood disorders. If you often feel down, anxious, or have unexplained sadness, low vitamin D may be playing a role. While it’s not the only cause of depression, maintaining adequate vitamin D levels can support overall mental well-being.
5. Hair Loss
Hair loss can result from many factors, but severe hair thinning has been associated with vitamin D deficiency. This is especially true in women experiencing unexplained hair shedding or thinning patches. Vitamin D contributes to the growth of hair follicles, so a deficiency can impact hair health.