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Timestamps 0:00 The first sign of low vitamin D is… 0:27 Why low vitamin D causes low back pain 0:55 How to tell if you have low ...
189,233 views
4 years ago
Vitamin D deficiency can lead to weakened bones, yes, but it can also lead to weakened immune systems as well. The risk of ...
3,737,214 views
6 years ago
