2. Bone discomfort
The major role of vitamin D is to absorb calcium and phosphorus from the intestines in order to build and maintain bone mass. A deficiency causes increased bone loss, osteopenia, osteomalacia, osteoporosis, and increased fracture risk.
As an adult, your bones are no longer growing, but new bone tissue constantly replaces the old. Severe vitamin D deficiency interferes with that replacement, leading to the softening of bones known as osteomalacia (or “adult rickets”), which causes pain and increases of osteoporosis.
3. Joint pain and inflammation
If you notice that your muscles regularly feel weaker or are cramping more than usual, chances are high that you’re not getting enough vitamin D. Joints such as your knees, hips, and vertebrae are especially prone to problems if you have chronically low levels of vitamin D, so talk to your doctor about any aches and pains you think might be related to a vitamin D deficiency.
4. Muscle weakness or sore and painful muscles
There is some evidence that vitamin D deficiency might be one potential cause of muscle weakness and muscle pain. If you notice that your muscles regularly feel weaker or are cramping more than usual, chances are high that you’re not getting enough vitamin D.
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