Friday, February 5, 2016
Not All Carbohydrates Are the Same
As you know, many are concerned about putting on excess weight or even being fat. That issue for some, has a tremendous emotional value. In our “youthful” culture looking good is supreme. We have a plethora of different diets that seem to work for some, but not for all. Perhaps, an Israeli study of personalized nutrition might assist those who are having difficulty keeping weight off in the wrong places.
Briefly, this Israeli study used various devices to monitor constantly the blood sugar of 800 adults. They reported that blood sugar levels, after meals, vary among the participants in ways that couldn’t necessarily be explained by what they consumed. So, these researchers devised a computer-based algorithm taking into account such characteristics as bodyweight, blood sugar, type of bacteria found in the intestines in order to predict more accurately, what happened to blood sugar after an individual person, consumed a specific food. We know that blood sugar after eating is strongly associated with the risk of type II diabetes and heart disease. However, blood sugar is not the only way to predict an individual’s predisposition to an obesity related problem. For example, insulin may be an even more powerful predictor as the pancreas releases insulin after eating. This hormone then directs incoming calories into storage areas of the liver, muscle and fat tissue. Hours later, Insulin levels fall and calories re-enter the bloodstream for use by the body. This is why people with type I diabetes who receive excess insulin probably gain weight compared to those that receive less insulin as they invariably lose weight, regardless of how much they eat.
In another study, researchers gave volunteers a bottle of glucose to drink and then measured their insulin levels some 30 minutes later after a meal. This is called the insulin 30 level test. Individuals were assigned human diets low in fat or low in processed fat digesting carbohydrates-low glycemic load diet. The study, published in 2007 found that individuals with high insulin – 30 did better on the low glycemic load diet compared to the low-fat diet. They concluded that cutting highly processed carbohydrates out of the diet should be considered in losing weight.
A few examples on the low glycemic index found among various food groups include the following: coarse barley bread, 75- 80% kernels; pumpernickel bread; 100% whole grain bread; wheat tortilla; tomato juice canned; Raisin Bran-Kellogg’s; All Bran; Couscous; pearled barley; whole wheat kernels ; Rye crisps; shortbread; and soda crackers. For a list of 100+ foods I suggest consulting the Harvard Health Publications on Glycemic index and load.
And now a few examples on the high glycemic index found on Harvard’s publications list include the following: baguette white plain; waffles, Aunt Jemima; Lucozade, original sparkling glucose; ; Gatorade; cornflakes; instant oatmeal; puffed wheat; white rice; quick cooking white basmati; rice cakes; vanilla wafers; Regular ice cream; Watermelon; bananas; macaroni and cheese ; Fruit roll ups; oven baked pretzels; baked russet potato; instant mashed potato ; and Pisa served with parmesan cheese and tomato sauce .
For complete list of glycemic index of more than 1000 foods can be found in the article “International tables of Glycemic Index and Glycemic Load Values: 2008” by Fiona S. Atkinson at all in the December 2008 issue of Diabetes Care. Article found in the New York Times, November 29, 2015
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