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Carol Ann Rinzler

Nutrition For Dummies, 5th Edition

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Get the facts on good nutrition, slim down, and feel great You've been hearing it since you were a little kid: “You are what you eat.” But unlike most adages you've long since debunked, this wise saying is true! Good nutrition is the key to achieving and maintaining a healthy weight and lifelong good health?no matter how you slice it.
Nutrition For Dummies is a one-size-fits-all guide to nutrition for anyone who may have fallen asleep in health class, wants to brush up on what they already know, or is looking to keep up-to-speed on the latest guidelines and research. It shows you how to manage your diet so you get the most bang (nutrients) for your buck (calories) and gives you the skinny on how to put together a healthy shopping list, how to prepare foods that are good for the body and soul, and ten easy ways to cut calories.
More than 20% new and updated information for this edition, including the truth about feeding your brain, vitamin D supplements, and energy drinks Coverage of the new 2010 Dietary Guidelines For Americans report Other titles by Rinzler: Controlling Cholesterol For Dummies An apple a day may not necessarily keep the doctor away, but with the simple guidance of Nutrition For Dummies, you can be on your way to living a happier, healthier ever after.
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  • Soliloquios Literarioshar citeretfor 5 år siden
    The first step is for an enzyme in your fat cells to break up stored triglycerides (the form of fat in adipose tissue). The enzyme action releases glycerol and fatty acids, which travel through your blood to body cells, where they combine with oxygen to produce heat/energy, plus water — lots of water — and the waste product carbon dioxide.

    As anyone who has used a high-protein/high-fat/low-carb weight-loss diet such as the Atkins regimen can tell you, in addition to all that water, burning fat without glucose produces a second waste product called ketones. In extreme cases, high concentrations of ketones (a condition known as ketosis) alter the acid/alkaline balance (or pH) of your blood and may trip you into a coma. Left untreated, ketosis can lead to death. Medically, this condition is most common among people with diabetes. For people on a low-carb diet, the more likely sign of ketosis is stinky urine or breath that smells like acetone (nail polish remover)
  • Soliloquios Literarioshar citeretfor 5 år siden
    When the fat moves down your digestive tract into your small intestine, an intestinal hormone called cholecystokinin alerts your gallbladder to release bile. Bile is an emulsifier, a substance that enables fat to mix with water so that lipases can start breaking the fat into glycerol and fatty acids. These smaller fragments may be stored in special cells (fat cells) in adipose tissue, or they may be absorbed into cells in the intestinal wall, where one of the following happens:

    They’re combined with oxygen (or burned) to produce heat/energy, water, and the waste product carbon dioxide.
  • Soliloquios Literarioshar citeretfor 5 år siden
    Although dietary fat has more energy (calories) per gram than protein and carbohydrates, your body has a more difficult time pulling the energy out of fatty foods than out of foods high in protein and carbs.

    Imagine a chain of long balloons — the kind people twist into shapes that resemble dachshunds, flowers, and other amusing things. When you drop one of these balloons into water, it floats. That’s exactly what happens when you swallow fat-rich foods. The fat floats on top of the watery food-and-liquid mixture in your stomach, which limits the effects of lipases, the enzymes that break fats apart so you can digest them. As a result, fat is digested more slowly than proteins and carbohydrates, so you feel fuller, a condition called satiety (pronounced say-ty-eh-tee) longer after eating high-fat food

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