Nutrition Nibbles from Nan...
Coronary Artery/Heart Disease:
Bean, Fiber, Legume and Soy Bean
In studying 9,632 men and women who participated in the First National
Health and Nutrition Examination Survey Epidemiologic Follow-up
Study, over an average of 19 years of follow-up, 1,802 incident
cases of coronary heart disease and 3,680 incident cases of cardiovascular
disease were discovered. Legume (bean) consumption was significantly
and inversely associated with the risk of coronary heart disease
and cardiovascular disease after adjusting for established cardiovascular
risk factors. Legume consumption 4 times or more per week compared
with less than once a week was associated with a 22% lower risk
of coronary heart disease. There are a variety of constituents in
legumes that may contribute to their protective effects.
Soy bean protein has been shown to reduce serum total and LDL cholesterol
levels. Legume intake other than soy bean has been associated with
reductions in serum cholesterol in clinical trials, probably due
to their high soluble fiber content. A half cup of cooked beans
contains, on average, 6 g of total fiber and 2 g of soluble fiber,
which is more total fiber than the same amount of soluble fiber
that is contained in one third cup of dry oat bran. Soluble fiber
has been associated with reduced cholesterol levels and reduced
risk of coronary heart disease, as well as improved glycemic control.
Legumes are a major source of folic acid, which may help lower homocysteine
levels.
"Legume Consumption and Risk of Coronary
Heart Disease in US Men and Women: NHANES I Epidemiologic Follow-Up
Study," Bazzano LA, He J, Ogden LG, et al. Arch Intern Med,
November 26, 2001;!61 .-2573-2578.
Prostate Cancer:
In studying 32 male patients with adenocarcinoma of the prostate
who consumed a diet for 3 weeks which included 200 g (about 3/4
cup) of spaghetti sauce each day, oxidative DNA damage in prostate
tissue at the end of this study was 28% lower than in specimens
from 7 patients who did not consume the spaghetti sauce, and serum
prostate specific antigen (PSA) levels were reduced by 18% with
the spaghetti sauce consumption.
Evans J, Family Practice News, March 15, 2002:9.
39096B
Cholesterol:
Olive Oil and Phenol
Ten patients with combined hyperlipidemia (mean plasma cholesterol
281 mg/dl, triglycerides 283 mg/dl) consumed a low fat, low cholesterol
diet with olive oil at 20 g/day as the only added fat, with no other
drug or vitamin supplement for 6 weeks, and then replaced the normal
olive oil used with extra virgin olive oil for 4 weeks. It was found
that extra virgin olive oil did not affect fatty acid composition
of LDL but significantly reduced the copper induced formation of
LDL hydroperoxides and lipoperoxidation end products, as well as
the depletion of LDL linoleic and arachidonic acid.
Daily intake of extra virgin olive oil in hyperlipidemic patients
may reduce the susceptibility of LDL to oxidation, not only due
to its high monounsaturated fatty acid content but also to the antioxidative
activity of its phenolic compounds.
"Effects of Dietary Virgin Olive Oil Phenols
on Low Density Lipoprotein Oxidation in Hyperlipidemic Patients,"
Masella R, BJ GiovanniniC, VariR, etal, Lipids, November 2001:36(11):1195-1202.
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Diabetes Mellitus:
In evaluating 258 veterans who were between 29 and 99 years of age
and were type 2 diabetics, patients who did not exercise had an
odds ratio of 2.71 for poor diabetic control compared with patients
who exercised.
Pigman HT. Gun DX, Krousel-Wood MA, South Med
J, January 2002; 95 (I): 72- 77. 38845
In evaluating 3,234 non diabetic individuals who had elevated fasting
and post load plasma glucose levels, a lifestyle modification program
that involved a minimal 7% weight loss and at least 150 minutes
of physical activity per week reduced the incidence of type 2 diabetes
by 58% compared with metformin at 850 mg, 2 times a day, which resulted
in a 31% reduction compared with placebo.
Knowler WC, Barreti-Connor E, et al, N England
JMed, February 7. 2002:346(6): 393-403. 38848
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