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high gi diets may increase fatty liver risk
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consuming a diet with a high glycaemic index (gi) may increase the risk of fatty liver, a condition linked to liver failure, suggests a new study with mice. researcher from children's hospital boston indicate that if the findings of the study are confirmed in humans, consumption of low gi foods may offer an easy prevention for fatty liver, a condition on the increase as obesity levels rise. "our experiment creates a very strong argument that a high-glycemic index diet causes, and a low-glycemic index diet prevents, fatty liver in humans," stated lead researcher david ludwig. the interest in the gi of foods and the digestibility of carbohydrates has increased considerably in recent years. a number of studies suggest that a low gi and slowly digestible carbohydrates can contribute to the prevention of obesity and diabetes. the glycaemic index measures how quickly certain foods release carbohydrates into the body, which then raise consumers' blood glucose levels. high gi foods, including white bread, white rice, many prepared breakfast cereals and concentrated sugar, cause blood sugar levels to rise more rapidly. low gi foods include most vegetables, fruits, beans and unprocessed grains. the new study, published in the september issue of the journal obesity , investigated the effect of feeding mice either a high or low gi diet containing a type of cornstarch that was either quickly or slowly digested, respectively. diets were then controlled to contain equal calories, fat, protein and carbohydrates. ludwig and co-workers report that, after six months, the mice weighed the same. however, mice on the low gi diet were lean, with normal amounts of body fat, while the animals fed the high gi diet had double the normal amount of fat in their bodies, blood and livers. the researchers have since launched a clinical trial to investigate if a low gi diet can reverse fatty liver in overweight children, aged eight to 17. the mechanism behind the apparent damage of consuming a high gi diet is due to increased production of insulin, said ludwig. after production in the pancreas, the hormone is concentrated in the liver, resulting in increased production and storage of fat. an increased level of fat in the liver is usually symptomless, he said, but it does increase the risk for liver inflammation, which may ultimately result in liver failure. fatty liver is reportedly on the rise in the us, with between one quarter and one half of american children said to have the condition. only one case of fatty liver was reported in children in the us in 1980. "this is a silent but dangerous epidemic," said ludwig. "just as type-2 diabetes exploded into our consciousness in the 1990s, so we think fatty liver will in the coming decade." the food industry is responding to the growing obesity problem with the launch of more and more low gi foods. the world health organisation (who) has described obesity as one of the most blatantly visible yet most neglected public health problems.
Source :Food Ingredients Food Science - Additives, Flavours, Starch
Date :
21
September
2007
Category :
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many diets promoted by companies and individuals rely on calorie restriction or the complete elimination of certain food groups in the quest to lose weight. additionally, the unhealthy reliance on appetite suppressants and artificial sweeteners is promoted. diets do not generally work in the long term and can even be dangerous. proteins, fats and carbohydrates should be correctly chosen for optimum health and ideal weight.
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women who eat a typical western diet high in junk food may increase their risk of suffering from mood disorders such as depression, according to a study conducted by researchers from the university of melbourne and published in the american journal of psychiatry.researchers gathered psychiatric evaluations of 925 women between the ages of 20 to 93 over the course of ten years, then compared them to data collected on the participants\' diets.
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so you have decided it`s time to try for a baby. congratulations! your head is swimming with thoughts about the future, and whether you are mom or dad this is an exciting time. but let`s pause for a moment and consider: good nutrition is more vital than ever now that you are trying to conceive. a healthy diet should be a regular part of life, but if it`s not currently, now is the time to start. for both mom and dad it is ideal to start improving your diet at least 3-12 months before conception.
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fat substitutes have been in the news a lot in the last few weeks, and rarely has the news been good. just yesterday danisco issued a statement reiterating the safety of its salatrim fat replacer after a damning report in the danish press, while a week earlier procter & gamble concluded the sale of the plant where it makes its olestra substitute after the ingredient failed to live up to expectations.
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individual variations in the glycaemic index (gi) of white bread, stated as 70 in the literature, may range from 44 to 132, says new research that questions the utility of the index. in an attempt to better understand the glycaemic index, researchers from the jean mayer usda human nutrition research center on aging at tufts university (usda hnrca) used a simple test food, white bread, to show that a relatively high level of inter-individual (among different individuals), and intra-individual (within the same individual) variability occurs on consumption of white bread.
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Coca.Cola
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PEPSI
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Mcdonald
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Nestle
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Mars
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Nutrika
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Chika
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