That's the conclusion of a new study on healthy adults, questioning how people with type 1 diabetes decide how much insulin should be administered before eating.
In type 1 diabetes, who have 3 million Americans, the pancreas does not produce enough insulin, the hormone that controls blood sugar in the blood.
To avoid a dangerous increase blood sugar, diabetics inject insulin before a meal, usually depending on the amount of carbohydrates you ingest.
But the new study, led by Jiansong Bao, University of Sydney in Australia suggests that this would not be the most effective way to do it. The GL of a food, however, would give better results.
team they pricked his finger to 10 healthy young adults to obtain blood samples, participants ate 120 types of foods, all with the same amount of calories. The study also included two groups of volunteers who consumed foods, including many products Western diet, such as cereals, bread, eggs and meat.
The glycemic load repeatedly exceeded carbohydrate counting as to the ability to predict the increased levels of blood sugar and insulin after a meal.
"This suggests we should reconsider the methods used to count the carbohydrates in patients with type 1 diabetes," said Dr. Edward J. Boyko, diabetes expert at the University of Washington in Seattle who was not involved in the study.
But Boyko said it is unknown whether these results would replicate in people who are not completely healthy.
"In the U.S., 60 percent of the population overweight or obese, so we do not know if the results would apply to all or diabetics, "he told Reuters Health.
To calculate the glycemic load, multiply the amount of carbohydrate in grams per serving by the glycemic index food, divided by 100. (The glycemic index of different products available in http://www.glycemicindex.com/).
Foods with low glycemic index cause blood sugar to increase slowly, low-pressure in the pancreas to produce insulin.
In American Journal of Clinical Nutrition, the team writes that the results also suggest that foods with high glycemic load would be associated with the onset of chronic diseases such as diabetes type 2, which does not require injections of insulin, and heart disease by raising sugar and insulin in the blood.
But the study does not prove, as limited only to changes in blood sugar and insulin two hours after each meal, Boyko said.
long-term effects and nutrients in food would also be important in disease risk.
And, according to the expert, the biggest problem remains the excess food. "We must concentrate on being overweight. The simple message is: eat less, "he said.
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