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Most weight loss diets encourage people to count calories. And our packaged foods dutifully list calories on their labels.
But where did those numbers actually come from? And can they be trusted?
No, according to an eye opening article published this week in the London based magazine "Buy Jintropin" New Scientist. In fact, the calorie counts for various foods may be off by as much "Jintropin China Supplier" as 25 percent enough "buy cheap jintropin online" to undermine any diet and a possible Cheap Levitra For Sale factor in the growing obesity epidemic. They argue that calorie estimates on food labels are based on flawed and outdated science, and provide misleading information on how much energy your body will actually get from a food.
One reason why calorie counts are inaccurate:
[O]ur bodies don't incinerate food, they digest it. According to one expert cited in the article, the energy (calories) derived from dietary fiber could be 25 percent less and that from protein, 20 percent less than current estimates.
What this means in real life, says Trivedi, is that the amount of calories listed on the label of, say, a fiber rich muesli (cereal) bar may be higher than that of a fiber challenged chocolate brownie, while, in truth, the muesli bar may contain fewer calories.
The brownie is likely packing more calories than stated on its Levitra Uk Suppliers label for two other reasons: its soft texture and its refined sugar and flour. Although not currently considered when determining the calorie content of food, both these factors increase the amount of energy (calories) released by a food in the body, according to recent research.
Cooking "ramps up the caloric potential of food" as well, says Trivedi, by making it easier for Herbal Viagra Uk the body to break up and absorb the food and its energy. She cites a study that found humans digested 90 percent of a cooked egg but only 51 percent of a raw egg.
Don't expect our current system of calorie counting to be overhauled soon, however. The Hgh Jintropin Avis general consensus among nutrition experts, says Trivedi, is that such an overhaul "would require a huge amount of research in both animal models and human volunteers, plus a more complicated labeling system than consumers are used to, for little real public health benefit."
Still, some scientists would like to see some attempt to correct food labels based on the latest scientific understanding of digestion. As one expert told Trivedi: "The public should be able to apply the science. [And] if you're not following the Jintropin (Gensci Pharmaceutical Co. Ltd.) science you're following something else."
Something to chew over as you count calories this weekend.
I enjoyed the following comments. I think too many of us forget or don't know why our modern diet is what it is. One of the main reasons we earlier got away from whole wheat products is that whole wheat did not store as well. It seems that the germ or the bran turned rancid over months and got mealy. Also pickled foods kept through the winter, were a source of fiber, ascorbic acid, seeds, and variety. Corn flour was a big part of former diets but it was not as nutrionally whole as wheat.
Fortunately now they do have a whole wheat white flour from different seeds and faster and more modern ways of getting things to market or better storage.