food components that readily dissolved in water and often impart gummy or gel-like characteristics to foods. An example is pectin from fruit, which is used to thicken jellies. Indigestible by human enzymes but may be broken down to absorbable products by bacteria in the digestive tract.
A spin class is an exercise class in which a group of people ride on stationary bikes. A spin class typically has loud, energetic music playing while the class follows the instructions from the leader to add or subtract resistance to the bikes.
The question dealt with the usefulness of spinning (spin classes) as a tool for weight loss. Since I get this question fairly often, I figured I might as well answer it on the blog. Basically my view is as follows: if you want to use regular cardio as part of your weight loss program, ditch the spin bike and go run.