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Help move research into practice. Your contribution funds the public health campaign to solve the vitamin D deficiency epidemic through research and education. Make a Donation.

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D*Calculator
Calculate your estimated additional D intake to reach your target vitamin D serum level. (40-60 ng/ml recommended by our scientist panel).

Serum Level Converter
Convert blood serum level 25(OH)D Unit between ng/mL and nmol/L.

Omega-3 Index Calculator
Calculate your estimated EPA+DHA (Fish Oil) intake to reach your target Omega-3 Index. (8-12% recommended).

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