[acb-diabetics] drinking hot coffee after a fast food meal inhibits body's response to glucose

[Mike Freeman]

Wondder how many thousand people she studied? NOT

 

Mike

 

 

From: acb-diabetics-bounces at acb.org [mailto:acb-diabetics-bounces at acb.org]
On Behalf Of Patricia LaFrance-Wolf
Sent: Saturday, April 02, 2011 3:43 PM
To: 'Discussion list for diabetics and/or ACB issues'
Subject: [acb-diabetics] drinking hot coffee after a fast food meal inhibits
body's response to glucose

 


Study: Got a Craving for Fast Food? Skip the Coffee.


1-Apr-2011

March 2011 - Eating a fatty fast food meal is never good for you, but
washing that meal down with a coffee is even worse, according to a new
University of Guelph study.

Researcher Marie-Soleil Beaudoin has discovered not only that a healthy
person's blood sugar levels spike after eating a high-fat meal, but that the
spike doubles after having both a fatty meal and caffeinated coffee –
jumping to levels similar to those of people at risk for diabetes.

"The results tell us that saturated fat interferes with the body's ability
to clear sugars from the blood and, when combined with caffeinated coffee,
the impact can be even worse," said Beaudoin, a PhD student who conducted
the study with U of G professors Lindsay Robinson and Terry Graham. "Having
sugar remain in our blood for long periods is unhealthy because it can take
a toll on our body's organs."

Published today in the Journal of Nutrition¸ the study is the first to
examine the effects of saturated fat and caffeinated coffee on blood sugar
levels using a novel fat cocktail which contains only lipids. This specially
designed beverage allows researchers to accurately mimic what happens to the
body when we ingest fat.

For the study, healthy men drank about one gram of the fat beverage for
every kilogram of body weight for their first meal. Six hours later, they
were given a second meal consisting of a sugar drink.

Typically when we ingest sugar, the body produces insulin, which takes the
sugar out of the blood and distributes it to our muscles, said Beaudoin.

But the researchers found that the fatty meal affected the body's ability to
clear the sugar out of the blood. The subjects' blood sugar levels were 32
per cent higher than they were when the men had not ingested the fat
cocktail.

The researchers also tested the impact of caffeinated coffee combined with
the fatty meal. For this test, participants received the equivalent of two
cups of caffeinated coffee five hours after ingesting the fat beverage. An
hour later, they were then given the sugar drink.

The results showed blood sugar levels increased by 65 per cent compared to
what they were when participants had not ingested the fat and caffeinated
coffee.

"This shows that the effects of a high-fat meal can last for hours," said
Beaudoin. "What you eat for lunch can impact how your body responds to food
later in the day."

Besides testing the participant's blood sugar levels, the researchers looked
at gastro-intestinal effects by measuring incretin hormones released by the
gut after ingesting the fat. These hormones signal the pancreas to release
insulin to help clear the blood of sugar. The researchers discovered these
hormones' responses to carbohydrates are blunted after ingesting the fat
beverage.

"Ultimately we have found that fat and caffeinated coffee are impairing the
communication between the gut and the pancreas, which could be playing a
role in why participants couldn't clear the sugar from their blood as
easily," said Beaudoin.

The results of the study are particularly important for people at risk for
metabolic diseases and Type 2 diabetes, she adds.

"We have known for many years that people with or at risk of Type 2 diabetes
should limit their caffeine intake. Drinking decaffeinated coffee instead of
caffeinated is one way to improve one's glucose tolerance. Limiting the
intake of saturated fatty acids found in red meat, processed foods and fast
food meals is also beneficial. This study has shown that the affects of
these foods can be severe and long lasting."

Source: University of Guelph 

 

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