General fitness, health and nutrition · Public discussion

Heme-iron intake / type 2 diabetes

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23 December 2003
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  1. <<snip>> Heme-iron intake from red meat sources is positively associated with the risk of type 2
    diabetes <<snip>>

    Am J Clin Nutr. 2004 Jan;79(1):70-5. Links

    Dietary iron intake and blood donations in relation to risk of type 2 diabetes in men: a prospective
    cohort study.

    Jiang R, Ma J, Ascherio A, Stampfer MJ, Willett WC, Hu FB.

    Departments of Nutrition and Epidemiology, Harvard School of Public Health, Boston (RJ, AA, MJS,
    WCW, and FBH), and the Channing Laboratory, Department of Medicine, Harvard Medical School and
    Brigham and Women's Hospital, Boston (JM, MJS, WCW, and FBH).

    BACKGROUND: Excessive iron stores may promote insulin resistance and lead to the development of
    type 2 diabetes. However, prospective data relating iron intake and blood donations (determinants
    of body iron stores) to diabetes incidence are limited. OBJECTIVE: We examined iron intake and
    blood donations in relation to the incidence of type 2 diabetes. DESIGN: We followed men aged 40-75
    y who participated in the Health Professionals' Follow-up Study; were free of diabetes,
    cardiovascular disease, and cancer in 1986; and provided dietary data (n = 38 394). Of those
    participants, 33 541 also provided a history of blood donation during the past 30 y in 1992.
    RESULTS: During 12 y of follow-up, we ascertained 1168 new cases of type 2 diabetes. After
    adjustment for age, body mass index, and other diabetes risk factors, total iron intake was not
    associated with the risk of type 2 diabetes. Intakes of total heme iron [multivariate relative risk
    (RR) for extreme quintiles: 1.28; 95% CI: 1.02,
    1.61; P for trend = 0.045] and of heme iron from red meat (RR: 1.63; 1.26,
    2.10; P for trend < 0.001) were associated with an increased risk. However, heme-iron intake from
    sources other than red meat was not associated with diabetes risk (RR: 0.99; 0.81, 1.22). No
    significant associations were found between blood donation and the risk of type 2 diabetes.
    CONCLUSIONS: Heme-iron intake from red meat sources is positively associated with the risk of type
    2 diabetes. Total iron intake, heme-iron intake from non-red meat sources, and blood donations are
    not related to the risk of type 2 diabetes.

    PMID: 14684399 [PubMed - in process]

    --------------------------------------------------------------------------
    ------

    Who loves ya. Tom Jesus Was A Vegetarian! jesuswasavegetarian.7h.comjesuswasavegetarian.7h.com Man Is A Herbivore!
    pages.ivillage.commanisaherbivore DEAD PEOPLE WALKING
    pages.ivillage.comdeadpeoplewalking

  2. A careful reading of the conclusions disproves the favorite theory of our posting friend,ie. that
    iron causes diabetes and that blood letting reduces risk for it. The total amount of iron ingested
    and iron from non-red meat made no difference, neither did blood letting. Ingesting red meat, which
    also happens to contain iron as does other meats, has something about it that is related to an
    increased risk. This kind of mistake happens when one is looking for one's farvorite theory to be
    confirmed.

    Quoted message said:

    <<snip>> Heme-iron intake from red meat sources is positively associated with the risk of type 2
    diabetes <<snip>>

    Am J Clin Nutr. 2004 Jan;79(1):70-5. Links

    Dietary iron intake and blood donations in relation to risk of type 2 diabetes in men: a
    prospective cohort study.

    Jiang R, Ma J, Ascherio A, Stampfer MJ, Willett WC, Hu FB.

    Departments of Nutrition and Epidemiology, Harvard School of Public Health, Boston (RJ, AA, MJS,
    WCW, and FBH), and the Channing Laboratory, Department of Medicine, Harvard Medical School and
    Brigham and Women's Hospital, Boston (JM, MJS, WCW, and FBH).

    BACKGROUND: Excessive iron stores may promote insulin resistance and lead to the development of
    type 2 diabetes. However, prospective data relating iron intake and blood donations (determinants
    of body iron stores) to diabetes incidence are limited. OBJECTIVE: We examined iron intake and
    blood donations in relation to the incidence of type 2 diabetes. DESIGN: We followed men aged 40-75
    y who participated in the Health Professionals' Follow-up Study; were free of diabetes,
    cardiovascular disease, and cancer in 1986; and provided dietary data (n = 38 394). Of those
    participants, 33 541 also provided a history of blood donation during the past 30 y in 1992.
    RESULTS: During 12 y of follow-up, we ascertained 1168 new cases of type 2 diabetes. After
    adjustment for age, body mass index, and other diabetes risk factors, total iron intake was not
    associated with the risk of type 2 diabetes. Intakes of total heme iron [multivariate relative risk
    (RR) for extreme quintiles: 1.28; 95% CI: 1.02,
    1.61; P for trend = 0.045] and of heme iron from red meat (RR: 1.63; 1.26,
    2.10; P for trend < 0.001) were associated with an increased risk. However, heme-iron intake from
    sources other than red meat was not associated with diabetes risk (RR: 0.99; 0.81, 1.22). No
    significant associations were found between blood donation and the risk of type 2 diabetes.
    CONCLUSIONS: Heme-iron intake from red meat sources is positively associated with the risk of
    type 2 diabetes. Total iron intake, heme-iron intake from non-red meat sources, and blood
    donations are not related to the risk of type 2 diabetes.

    PMID: 14684399 [PubMed - in process]

    --------------------------------------------------------------------------
    ------

    Who loves ya. Tom Jesus Was A Vegetarian! jesuswasavegetarian.7h.comjesuswasavegetarian.7h.com Man Is A Herbivore!
    pages.ivillage.commanisaherbivore DEAD PEOPLE WALKING
    pages.ivillage.comdeadpeoplewalking

  3. Quoted message said:

    Subject: Re: Heme-iron intake / type 2 diabetes
    From: [email hidden]
    Date: 12/24/2003 10:36 AM Mountain Standard Time
    Message-id: <[email hidden]>

    Quoted message said:

    This kind of mistake happens when one is looking for >one's farvorite theory to be confirmed.

    So in effect .. markd ..is NOW saying ALL medical research which finds heme iron to BE associated
    with elevated risk for diabetes is .. TAINTED .. due TO the fact the researchers ALSO are interested
    in finding heme iron TO BE .. associated.

    markd is attempting to deride medical studies based on his limited intelligence ..

    Which limited intelligence simply doesn't .. allow ..

    Tough .. eh .. markd ..

    <<snip>> Heme-iron intake from red meat sources is positively associated with the risk of type 2
    diabetes <<snip>>

    Read the above .. absorb it .. attempt to understand what it says ..

    Then once again .. FO ..

    Quoted message said:
    Quoted message said:

    <<snip>> Heme-iron intake from red meat sources is positively associated with the


    risk

    Quoted message said:

    of type 2 diabetes <<snip>>

    Am J Clin Nutr. 2004 Jan;79(1):70-5. Links

    Dietary iron intake and blood donations in relation to risk of type 2


    diabetes

    Quoted message said:

    in men: a prospective cohort study.

    Jiang R, Ma J, Ascherio A, Stampfer MJ, Willett WC, Hu FB.

    Departments of Nutrition and Epidemiology, Harvard School of Public Health, Boston (RJ, AA, MJS,
    WCW, and FBH), and the Channing Laboratory, Department


    of

    Quoted message said:

    Medicine, Harvard Medical School and Brigham and Women's Hospital, Boston


    (JM,

    Quoted message said:

    MJS, WCW, and FBH).

    BACKGROUND: Excessive iron stores may promote insulin resistance and lead to the development of
    type 2 diabetes. However, prospective data relating iron intake and blood donations
    (determinants of body iron stores) to diabetes incidence are limited. OBJECTIVE: We examined
    iron intake and blood


    donations

    Quoted message said:

    in relation to the incidence of type 2 diabetes. DESIGN: We followed men


    aged

    Quoted message said:

    40-75 y who participated in the Health Professionals' Follow-up Study; were free of diabetes,
    cardiovascular disease, and cancer in 1986; and provided dietary data (n = 38 394). Of those
    participants, 33 541 also provided a history of blood donation during the past 30 y in 1992.
    RESULTS: During 12 y


    of

    Quoted message said:

    follow-up, we ascertained 1168 new cases of type 2 diabetes. After


    adjustment

    Quoted message said:

    for age, body mass index, and other diabetes risk factors, total iron intake was not associated
    with the risk of type 2 diabetes. Intakes of total heme


    iron

    Quoted message said:

    [multivariate relative risk (RR) for extreme quintiles: 1.28; 95% CI: 1.02,
    1.61; P for trend = 0.045] and of heme iron from red meat (RR: 1.63; 1.26,
    2.10; P for trend < 0.001) were associated with an increased risk. However, heme-iron intake from
    sources other than red meat was not associated with diabetes risk (RR: 0.99; 0.81, 1.22). No
    significant associations were found between blood donation and the risk of type 2 diabetes.
    CONCLUSIONS:


    Heme-iron

    Quoted message said:

    intake from red meat sources is positively associated with the risk of type


    2

    Quoted message said:

    diabetes. Total iron intake, heme-iron intake from non-red meat sources, and blood donations are
    not related to the risk of type 2 diabetes.

    PMID: 14684399 [PubMed - in process]

    --------------------------------------------------------------------------
    ------

    Who loves ya. Tom

    Jesus Was A Vegetarian! jesuswasavegetarian.7h.comjesuswasavegetarian.7h.com Man Is A Herbivore!
    pages.ivillage.commanisaherbivore DEAD PEOPLE WALKING
    pages.ivillage.comdeadpeoplewalking

  4. Not at all, what it shows is that in this specific research iron intake is not an independent
    variable for diabetes risk. Recall, total iron or iron from non-red meat sources had no effect. Iron
    and blood letting as an independent variable were not confirmed. Red meat did, and it also happens
    to contain iron, as well as many other things. This drives a woodden stake through the heart of your
    favorite notion. That which you thought it says in fact said the oppisite from what you wanted, nay
    blindly, find it now really says.

    Quoted message said:
    Quoted message said:

    This kind of mistake happens when one is looking for >one's farvorite theory to be confirmed.

    So in effect .. markd ..is NOW saying ALL medical research which finds heme iron to BE associated
    with elevated risk for diabetes is .. TAINTED .. due TO the fact the researchers ALSO are
    interested in finding heme iron TO BE .. associated.

    markd is attempting to deride medical studies based on his limited intelligence ..

    Which limited intelligence simply doesn't .. allow ..

    Tough .. eh .. markd ..

    <<snip>> Heme-iron intake from red meat sources is positively associated with the risk of type 2
    diabetes <<snip>>

    Read the above .. absorb it .. attempt to understand what it says ..

    Then once again .. FO ..

    Quoted message said:
    Quoted message said:

    <<snip>> Heme-iron intake from red meat sources is positively associated with the


    risk

    Quoted message said:

    of type 2 diabetes <<snip>>

    Am J Clin Nutr. 2004 Jan;79(1):70-5. Links

    Dietary iron intake and blood donations in relation to risk of type 2


    diabetes

    Quoted message said:

    in men: a prospective cohort study.

    Jiang R, Ma J, Ascherio A, Stampfer MJ, Willett WC, Hu FB.

    Departments of Nutrition and Epidemiology, Harvard School of Public Health, Boston (RJ, AA, MJS,
    WCW, and FBH), and the Channing Laboratory, Department


    of

    Quoted message said:

    Medicine, Harvard Medical School and Brigham and Women's Hospital, Boston


    (JM,

    Quoted message said:

    MJS, WCW, and FBH).

    BACKGROUND: Excessive iron stores may promote insulin resistance and lead to the development of
    type 2 diabetes. However, prospective data relating iron intake and blood donations
    (determinants of body iron stores) to diabetes incidence are limited. OBJECTIVE: We examined
    iron intake and blood


    donations

    Quoted message said:

    in relation to the incidence of type 2 diabetes. DESIGN: We followed men


    aged

    Quoted message said:

    40-75 y who participated in the Health Professionals' Follow-up Study; were free of diabetes,
    cardiovascular disease, and cancer in 1986; and provided dietary data (n = 38 394). Of those
    participants, 33 541 also provided a history of blood donation during the past 30 y in 1992.
    RESULTS: During 12 y


    of

    Quoted message said:

    follow-up, we ascertained 1168 new cases of type 2 diabetes. After


    adjustment

    Quoted message said:

    for age, body mass index, and other diabetes risk factors, total iron intake was not associated
    with the risk of type 2 diabetes. Intakes of total heme


    iron

    Quoted message said:

    [multivariate relative risk (RR) for extreme quintiles: 1.28; 95% CI: 1.02,
    1.61; P for trend = 0.045] and of heme iron from red meat (RR: 1.63; 1.26,
    2.10; P for trend < 0.001) were associated with an increased risk. However, heme-iron intake from
    sources other than red meat was not associated with diabetes risk (RR: 0.99; 0.81, 1.22). No
    significant associations were found between blood donation and the risk of type 2 diabetes.
    CONCLUSIONS:


    Heme-iron

    Quoted message said:

    intake from red meat sources is positively associated with the risk of type


    2

    Quoted message said:

    diabetes. Total iron intake, heme-iron intake from non-red meat sources, and blood donations are
    not related to the risk of type 2 diabetes.

    PMID: 14684399 [PubMed - in process]

    --------------------------------------------------------------------------
    ------

    Who loves ya. Tom

    Jesus Was A Vegetarian! jesuswasavegetarian.7h.comjesuswasavegetarian.7h.com Man Is A Herbivore!
    pages.ivillage.commanisaherbivore DEAD PEOPLE WALKING
    pages.ivillage.comdeadpeoplewalking

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