Many people believe that to lose weight they have to go on a low-calorie diet. That
often means starving oneself until the diet is no longer tolerable. Then the weight goes
right back onand then some. Happily, there is a much better way. It is easy and
offers many other health benefits, too.
No More Diets
The first thing to realize is that changing eating habits must be more than a
short-term means to an end. Changing eating habits is the cornerstone of permanent weight
control. There is no way to "lose 20 pounds in two short weeks" and make it
last. Very-low-calorie diets cause two major problems: they lower one's metabolic rate,
making it harder to slim down, and they lead to bingeing.
Fat Versus Complex Carbohydrates
The old myth was that pasta, bread, potatoes, and rice are fattening. Not true. In
fact, carbohydrate-rich foods are perfect for permanent weight control. Carbohydrates
contain less than half the calories of fat, which means that replacing fatty foods with
complex carbohydrates automatically cuts calories. But calories are only part of the
story. A recent study in China found that, on the average, Chinese people eat 20 percent
more calories than Americans, but they are also slimmer.1 Part of this is due
to the sedentary American lifestyle, but there is more to it than exercise alone. Earlier
studies have shown that obese people do not consume more calories than non-obese
peoplein many cases, they consume less.2,3
The body treats carbohydrates differently than fat calories. The difference comes with
how the body stores the energy of different food types. It is very inefficient for the
body to store the energy of carbohydrates as body fatit burns 23 percent of the
calories of the carbohydratebut fat is converted easily into body fat. Only 3
percent of the calories in fat are burned in the process of conversion and storage.4
It is the type of food, not so much the quantity, that affects body fat the
most.5
Protein
Although protein and carbohydrates have almost the same number of calories per gram,
foods that are high in proteinparticularly animal productsare usually high in
fat, too. Even "lean" cuts of meat have much more fat than a healthy body needs.
And animal products always lack fiber. Fiber helps make foods more satisfying without
adding many calories, and it is only found in foods from plants.
Exercise
Exercise is essential. Aerobic exercise speeds up the breakdown of fat in one's body
and makes sure that muscle is not lost. Toning exercises and weight-lifting help firm
muscles and increase muscle mass. A combination of exercises will help one achieve a
slimmer, firmer, healthier body in a shorter period of time. The trick is to find
activities that one enjoys and that can fit one's lifestyle. Walking is popular because it
requires no special equipment and can be done anywhere at anytime.
Conclusion
The best weight control program is a high-complex-carbohydrate, low-fat, vegetarian
diet complemented by regular exercise. This is the best choice for a healthier, longer,
happier life.
References
1. China: a living lab for epidemiology. Science 1990;248:553-5.
2. Garrow JS. Energy balance and obesity in man. New York: Elsevier,
1974.
3. Braitman LS, Adlin E, Stanton JL. Obesity and caloric intake:
the National Health and Nutrition Examination Survey of 1971-75
(HANES 1). J Chronic Dis 1985;38:727-32.
4. Flatt JP. Energetics of intermediary metabolism. Found in: Gatrow
JS, Halliday D, eds. Substrate and energy metabolism in man. London:
John Libbey and Co., 1985;58-69.
5. Dreon DM, Frey-Hewitt B, Ellsworth N, Williams PT, Terry RB,
Wood PD. Dietary fat: carbohyrate ratio and obesity in middle-aged
men. Am J Clin Nutr 1988;47:995-1000.
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