Fast-5 Diet and Lifestyle: [fast5] Re: Interesting news item on tea and coffee

Wednesday, December 16, 2009

[fast5] Re: Interesting news item on tea and coffee

I've heard that donating blood is the best way to lower iron stores
and get the weight loss moving......
Now... where to find a blood drive?

Helen

--- In fast5@yahoogroups.com, Heather Twist <HeatherTwist@...> wrote:
>
> If the iron connection is correct though, then red meat would be an
> issue too. The iron in red meat is the most absorbable: the iron in
> liver is probably the worst. And molasses, esp. molasses in beer, is
> extremely absorbable. The thing to do would be to get your ferritin
> levels checked, and if they are high, donate blood if you can. Once
> your have a lot of iron in your body, it just doesn't come OUT easily,
> and it just keeps going up once you reach menopause. But it is highly
> correlated with Type 2 diabetes.
>
> Actually if you donate blood, they will tell you if you have anemia,
> which is an easy way to check your iron status.
>
> What gets me is they keep talking about "life style changes" as far as
> exercise and diet, but the diet they recommend isn't particularly
> effective in helping Type 2 diabetes. Exercise causes one to sweat,
> which lowers your stored ferritin levels, and it does cause genetic
> changes. But no one mentions donating blood, which so far appears to
> be the only "life style change" with proven results.
>
>
> On Tue, Dec 15, 2009 at 2:54 PM, grdmahelen <no_reply@yahoogroups.com> wrote:
> >
> > So, my coffee and tea intake is a good thing :)
> >
> > I don't eat many things with flour in them... maybe one piece of low carb
> > bread a wk.. if that...
> >
> > Helen
> >
> > --- In fast5@yahoogroups.com, Heather Twist <HeatherTwist@> wrote:
> >>
> >> Tea and coffee both interfere with iron absorption too. High levels of
> >> ferritin are very much associated with T2 diabetes, and giving blood
> >> has shown to be protective for T2. Given the high levels of
> >> iron-supplementation of our food, we NEED to drink tea or coffee with
> >> them!
> >>
> >> http://www.clinchem.org/cgi/content/full/51/7/1201
> >>
> >> Frequent blood donors (2–10 donations) had increased insulin
> >> sensitivity [3.42 (1.03) vs 2.45 (1.2) x 10–4 · min–1 · mIU/L; P =
> >> 0.04], decreased insulin secretion [186 (82) vs 401.7 (254) mIU/L ·
> >> min; P <0.0001], and significantly lower iron stores [serum ferritin,
> >> 101.5 (74) vs 162 (100) µg/L; P = 0.017] than nondonors, but the 2
> >> groups had similar blood hematocrits and blood hemoglobin
> >> concentrations.
> >>
> >> http://www.feinberg.northwestern.edu/nutrition/factsheets/iron.html
> >>
> >> Tannic acid in coffee and tea also adversely affects iron absorption.
> >> Consumption of coffee or tea one hour before or after consumption of a
> >> nonheme iron dietary source can reduce absorption of this mineral by
> >> as much as 40%.
> >>
> >>
> >> Incidentally, the foods with the highest iron-supplementation are the
> >> *carb* foods, which I think is a confounding factor for diabetics. One
> >> serving of Chex cereal, for instance, has a whole day's worth of iron
> >> in one serving. Most "white flour" is "enriched", and even the rice,
> >> so even homemade food is loaded with iron.
> >>
> >>
> >>
> >> On Tue, Dec 15, 2009 at 6:25 AM, dnn8350 <david@> wrote:
> >> > Some new data on the apparently beneficial influence of tea and coffee on type 2 diabetes:
> >> >
> >> > http://news.bbc.co.uk/1/hi/health/8411605.stm
> >> >
> >> > I wonder how to take this, given the popularity of tea-drinking in the UK, and coffee-drinking in the US. It seems to imply that type 2 diabetes would be even commoner in the population if less of these beverages were drunk.
> >> >
> >> > David
> >> >
> >> >
> >> >
> >> > ------------------------------------
> >> >
> >> > Yahoo! Groups Links
> >> >
> >> >
> >> >
> >> >
> >>
> >>
> >>
> >> --
> >> Heather Twist
> >> http://eatingoffthefoodgrid.blogspot.com/
> >>
> >
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
>
>
> --
> Heather Twist
> http://eatingoffthefoodgrid.blogspot.com/
>