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

Tuesday, December 15, 2009

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

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/
>>
>
>
>
>
> ------------------------------------
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