The Calorie Delusion
Posted on July 16, 2009 Comments (6)
Dietary fibre is one example. As well as being more resistant to mechanical and chemical digestion than other forms of carbohydrate, dietary fibre provides energy for gut microbes, and they take their cut before we get our share. Livesey has calculated that all these factors reduce the energy derived from dietary fibre by 25 per cent
“Cooking gives food energy,” says Wrangham. It alters the structure of the food at the molecular level, making it easier for our body to break it up and extract the nutrients.
In plants, for example, much of the energy from starch is stored as amylopectin, which is semi-crystalline, does not dissolve in water, and cannot be easily digested. Heat starchy foods with water, though, and the crystalline forms begin to melt. The starch granules absorb water, swell, and eventually burst. The amylopectin is shattered into short starch molecules called amylose, which are easily digested by the enzyme amylase.
It seems pretty obvious, just looking around, as you walk around in any city that people are much fatter, on average, than we were 20 years ago. And the data shows people were much larger (taller, but also fatter) 20 years ago than they were 100 years ago. And we know obesity causes many human health issues. The failure to address the obesity problem in the USA is another example of the failed “health care” system. Instead of a working health care system we just manage diseases that result for unhealthy living. We should be do better at providing information to people on healthy eating (including more accurate calorie counts as it concerns food we eat) and healthy lifestyle choices.
Related: Big Fat Lie – Eat food. Not too much. Mostly plants. – Waste from Gut Bacteria Helps Host Control Weight – Obesity Epidemic Explained – Kind Of – Study Finds Obesity as Teen as Deadly as Smoking – Tracking the Ecosystem Within Us – Energy Efficiency of Digestion – Active Amish Avoid Obesity