Vitamin D and chronic diseases: the current state of the art

Area of Science:

• Endocrinology
• Nutritional Science
• Public Health

Background:

• Vitamin D is essential for calcium absorption and bone health.
• Emerging research suggests potential links between vitamin D and various chronic diseases.
• The role of vitamin D in conditions beyond bone health requires thorough investigation.

Purpose of the Study:

• To review the current scientific evidence on the role of vitamin D in chronic diseases.
• To assess the efficacy of vitamin D supplementation for managing conditions such as osteoporosis, cancer, cardiovascular diseases, dementia, autism, diabetes, and fertility issues.
• To provide expert consensus on vitamin D's role in health and disease prevention.

Main Methods:

• A panel of scientific experts contributed to the document based on their expertise.
• Manuscripts were drafted by individual experts and then subjected to a rigorous voting process.
• Consensus was reached through multiple voting rounds with predefined acceptance thresholds (≥75%, ≥67%, or ≥50%).

Main Results:

• Current evidence strongly supports vitamin D's role in maintaining bone health.
• The evidence does not currently support a role for vitamin D in the treatment of other chronic diseases.
• Individuals with vitamin D deficiency are identified as being at higher risk for developing chronic diseases.

Conclusions:

• While vitamin D is crucial for bone health, its therapeutic application in other chronic diseases lacks sufficient evidence.
• Treatment of vitamin D deficiency is recommended as a preventative measure against the development of chronic diseases.
• Further research is needed to fully elucidate the complex relationship between vitamin D and various non-skeletal health outcomes.