> vitamin D levels are experimentally low in African-Americans and Hispano-Americans. Occum's Razor begs us to justify why this isn't a race-poverty correlation, yet another indication that our society is systematically disenfranchising folks based on skin color and country of origin. With better diet might come better vitamin D blood levels
You are kind of missing the point, which is that the test used for vitamin D levels is not directly measuring the levels of the kind of vitamin D actually needed. It is measuring a different kind of vitamin D, and then we infer the levels of the other kind from that.
This inference is based on data for light skinned people, and it appears that it is not valid for dark skinned people. It underestimates the amount of the needed kind of vitamin D for them.
This may lead to widespread misdiagnoses of vitamin D deficiencies in African-Americans who in fact have fine levels of the kind of vitamin D that is actually needed.
You are kind of missing the point, which is that the test used for vitamin D levels is not directly measuring the levels of the kind of vitamin D actually needed. It is measuring a different kind of vitamin D, and then we infer the levels of the other kind from that.
This inference is based on data for light skinned people, and it appears that it is not valid for dark skinned people. It underestimates the amount of the needed kind of vitamin D for them.
This may lead to widespread misdiagnoses of vitamin D deficiencies in African-Americans who in fact have fine levels of the kind of vitamin D that is actually needed.