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Vitamin D, which is converted by the sun from cholesterol on the skin, is regarded as an extremely important health-promoting factor. Apart from being a vitamin, it works as a hormone which can influence thousands of different human genes and every aspect of human health.
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The Most Effective Daily Dosage of Vitamin D Vitamin D, which is converted by the sun from cholesterol on the skin, is regarded as an extremely important health-promoting factor. Apart from being a vitamin, it works as a hormone which can influence thousands of different human genes and every aspect of human health. +44 (0) 20 8426 3400