Vitamin D is very important for your spine because it helps to prevent disc degeneration and other spine issues. Here’s how having a Vitamin D deficiency can affect your spine:

• Decrease in muscle strength: Lack of Vitamin D has been associated with a decrease in muscle strength in your back and neck muscles which can lead to herniated discs. 
• Spinal degeneration: Vitamin D deficiencies have been associated with lumbar degenerative disease and lower back pain.
• Increased risk for spinal cord injuries: Studies have shown that people with spinal cord injuries had low Vitamin D levels compared to those with no spinal cord injuries.