dose response % change O3 by intake group

Dose Response for Omega-3 Supplementation

Percent Change in Omega-3 Index by Supplement Amount Individual responses vary greatly with supplementation – that is why you need to test! For example, from a study of 115 people (N=115), those taking 1800 mg...

gorham deficiency by race

Vitamin D Deficiency and Race

Does your skin color affect your chance of vitamin D deficiency? Data from the National Health and Nutrition Examination Survey (NHANES) III shows that non-Hispanic blacks are at more than 10 times greater risk...

gorham deficiency by season

Seasonal Effect on Vitamin D Deficiency

Does season affect your chance of vitamin D deficiency? This chart demonstrates the profound influence that season can have on vitamin D levels and risk of deficiency, which increases with increased distance from the...

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Serum Level vs Intake (Ages 18+ years)

Why check your vitamin D serum levels? In an analysis of vitamin D serum levels and daily supplemental vitamin D intake amounts for 7324 D*action participants, we found that while average serum level rises...