9781422269886

Six stages of digestion.

walls of the small intestine and from there are transported to various parts of the body via the circulatory system . Because the body cannot use food material “as is,” it converts the food into glucose, lipoproteins, and amino acids. Lipoproteins are stored by the body for future use, and amino acids are used as “building blocks” to construct new enzymes, proteins, or even tissues. Glucose, on the other hand, is a simple sugar that provides the energy your body needs for day-to-day activities. If you think of your body as a vehicle, glucose is the fuel that helps it run. However, there is a lot more to the process than that. As you’ll discover in this book, some forms of “fuel” are better

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Foods for Peak Fitness