Newsgroup: it.salute.alimentazione
Titolo: "Le bibite zuccherate alla base della dieta americana"

Preliminary data suggest that soda and sweet drinks are the main source of
calories in American diet
Tufts researchers recently reported that while the leading source of
calories in the average American diet used to be from white bread, that may
have changed. Now, according to preliminary research conducted by
scientists at the Jean Mayer USDA Human Nutrition Research Center on Aging
at Tufts University, Americans are drinking these calories instead. The
research was presented in abstract form at the Experimental Biology
Conference in April of this year and a more comprehensive paper is being
developed.
Odilia Bermudez, PhD, MPH, studied the reported diets of a large nationwide
sample of American adults. Among respondents to the 1999-2000 National
Health and Nutrition Examination Survey (NHANES), more than two thirds
reported drinking enough soda and/or sweet drinks to provide them with a
greater proportion of daily calories than any other food. In addition,
obesity rates were higher among these sweet drink consumers. Consumers of
100% orange juice and low fat milk, on the other hand, tended to be less
overweight, on average.
Bermudez, who is also an assistant professor at Tufts University's Friedman
School of Nutrition Science and Policy, is hopeful that, "by helping to
identify the main sources of excess energy in the American diet, this work
may contribute to the development of much-needed strategies to combat
obesity in the American public."
"These results are startling," she continued, "and indicate that we need a
much better understanding of how the American diet has changed. Our paper
will look more closely at the issue of sweet drink consumption and its
relation to obesity factors among three of the main ethnic groups included
in the national surveys: African Americans, Hispanics and non-Hispanic
whites."
###
Experimental Biology 2005, San Diego. Abstract # 839.5 Bermudez, O.,
"Consumption of sweet drinks among American adults from the NHANES
1999-2000."
http://www.eurekalert.org/pub_releases/2005-05/tu-pds052605.php

 developed.
...così finalmente si smette di accusare i grassi di Mc Donalds dell'obesità
americana...
...bibite zuccherate e panaccio schifoso...
Ciao
Gianni

 ...bibite zuccherate e panaccio schifoso...
Già, robaccia. Una strada verso la quale ci stiamo incamminando anche 
noialtri, mi pare...
Negli USA, inoltre, dal 1970 al 2000, è aumentato di un quarto il consumo 
di calorie giornaliero pro capite (+530 calorie, ovvero +24,5%), mentre 
l'attività fisica è diminuita...
L'aumento calorico è attribuito soprattutto ai cereali raffinati, ai grassi 
aggiunti e allo zucchero aggiunto negli alimenti e bevande, e associato 
anche al mangiar fuori piuttosto che cucinarsi a casa.
Come risultato, il 62 per cento degli americani sono sovrappeso, e il 27 
per cento sono obesi (il doppio che nel 1960).
USDA's Economic Research Service (ERS) estimates [...] dietary intake of 
calories in 2000 at just under 2,700 calories per person per day. ERS data 
suggest that average daily calorie intake increased by 24.5 percent, or 
about 530 calories, between 1970 and 2000. Of that 24.5-percent increase, 
grains (mainly refined grain products) contributed 9.5 percentage points; 
added fats and oils, 9.0 percentage points; added sugars, 4.7 percentage 
points; fruits and vegetables together, 1.5 percentage points; meats and 
nuts together, 1 percentage point; and dairy products and eggs together, 
-1.5 percentage point.
Some of the observed increase in caloric intake may be associated with the 
increase in eating out. Data from USDA's food intake surveys show that the 
food-away-from-home sector provided 32 percent of total food energy 
consumption in 1994-96, up from 18 percent in 1977-78. The data also 
suggest that, when eating out, people either eat more or eat higher calorie 
foods-or both-and that this tendency appears to be increasing.
According to the National Center for Health Statistics, an astounding 62 
percent of adult Americans were overweight in 2000, up from 46 percent in 
1980. Twenty-seven percent of adults were so far overweight that they were 
classified as obese (at least 30 pounds above their healthy weight)-twice 
the percentage classified as such in 1960. Alarmingly, an upward trend in 
obesity is also occurring for U.S. children.
Although multiple factors can account for weight gain, the basic cause is 
an excess of energy intake over energy expenditure. In general, Americans' 
activity levels have not kept pace with their increase in calorie 
consumption. Many people apparently are oblivious to the number of calories 
they consume.
http://www.usda.gov/factbook/chapter2.htm
-- 
Enrico C
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