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Ahhhm yes, black stillbirth rates

A simple question: were the mothers’ Vitamin D levels checked and if not why not?


Could it be that simple? Melanin in skin?

7 thoughts on “Ahhhm yes, black stillbirth rates”

  1. That was my first thought. Googled the question and it returned the answer that Vit D doesn’t make a difference.

  2. Fair enough, ED. But was it said by the same people who said the vaxx was safe and effective and would block transmission?

  3. re: How A Vitamin D Test Misdiagnosed African-Americans

    “By the current blood test for vitamin D, most African-Americans are deficient. That can lead to weak bones. So many doctors prescribe supplement pills to bring their levels up.

    But the problem is with the test, not the patients, according to a new study. The vast majority of African-Americans have plenty of the form of vitamin D that counts — the type their cells can readily use.

    The research resolves a long-standing paradox.

    “The population in the United States with the best bone health happens to be the African-American population,” says Dr. Ravi Thadhani, a professor of medicine at Massachusetts General Hospital and lead author of the study. “But almost 80 percent of these individuals are defined as having vitamin D deficiency. This was perplexing.”

    The origin of this paradox is a fascinating tale of genes interacting with geography. More on that later.

    To unravel the mystery, Thadhani and his colleagues looked closely at various forms of vitamin D in the blood of 2,085 Baltimore residents, black and white. They focused on a form of the vitamin called 25-hydroxyvitamin D, which makes up most of the vitamin circulating in the blood. It’s the form that the standard test measures.

    The 25-hydroxy form is tightly bound to a protein, and as a result, bone cells, immune cells and other tissues that need vitamin D can’t take it up. It has to be converted by the kidneys into a form called 1,25-dihydroxyvitamin D.

    For Caucasians, blood levels of 25-hydroxyvitamin D are a pretty good proxy for how much of the bioavailable vitamin they have. But not for blacks.

    That’s because blacks have only a quarter to a third as much of the binding protein, Thadhani says. So the blood test for the 25-hydroxy form is misleading.”


    Here’s another link:

  4. Fascinating, p-r. I wonder, then, what the story is on South Asians in Britain. Their dark skin (and tendency to cover their skins or linger indoors) exposes them to Vitamin D shortage. But they are much more like Europeans than like Africans so perhaps the standard tests are relevant to them.

    However this takes us miles from the sickle cell point which was anyway shown to look pretty spurious in a thread below.

  5. Vitamin D3 was my first thought as it was of my partner. It is important in pregnacy as, for example, here: As pointed out by several commentators the incidence of darker skin tones coupled with covering of skin while outside compounds the problem. I would add the various health agencies who try to persuade us to slip, slap, slop in the sunshine don’t help matters. Cut down on the UV and you cut down on our primary source of D3. It is something we don’t get in our food and it is a major contributor to our immune system, that of the pregnant mother-to-be and of the foetus. D3 is the key. D2 hasa different action.

    By the way, as regards sickle cell check outThe Seven Daughters of Eve. Sykes argues that developing sickle cells is an evolutionary advantage.

  6. Isn’t sickle cell one of the many evolutionary responses to malaria? We (as a species) have lived with malaria for so long it’s shaped our evolution massively. I believe even our blood groups are a response to it.

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