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Vitamin Deficiency Risk Score

For informational purposes only. This tool is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional.
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Pro Tip

The NHS recommends 10 mcg (400 IU) vitamin D daily for everyone in the UK from October to March. For best results with the Vitamin Deficiency Risk, always cross-verify your inputs against source data before calculating. Running the calculation with slightly varied inputs (sensitivity analysis) helps you understand which parameters have the greatest influence on the output and where measurement precision matters most.

Difficulty:Intermediate

Did you know?

Vitamin D deficiency has been associated with increased risk of 17 types of cancer according to Vitamin D Council research.

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Reviewed May 2026
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