Herman Aihara offers some great information about "why people get fat and how to reduce fat" in his book, Basic Macrobiotics.
Here are his tips for avoiding obesity:
1. Restrict the intake of dairy and fatty animal foods.
2. Use vegetable oils in cooking.
3. Avoid margarine.
4. Avoid refined sugar.
5. Use very little honey, syrups, and other sweeteners — even natural ones.
6. Eat as little fruit as possible.
7. Eat whole grains, vegetables, sea vegetables, and beans.
8. Reduce animal foods to 10% of total food; fish and shellfish are best.
9. Do not drink alcohol.
10. Use no drugs.
11. Get plenty of exercise, and try to work up a sweat every day.
Starting on page 64, he explains how carbohydrates (sugars and starches), protein, and fat are metabolized into energy, carbon dioxide, and water. Then he talks about pyruvic acid, which is created first when carbohydrates are broken down in the energy cycle.
In obese people, he says, there is a tendency for the pyruvic acid to stop before it can completely metabolize. A buildup of the pyruvic acid then occurs, which in turn inhibits the body from releasing stored fat, and converts the acid into neutral fats or glycerides, which are then stored in the body.
In his opinion, this halt in the energy cycle is caused by overeating simple carbohydrates, protein, and fat — especially processed carbohydrates, refined sugar, and fruit. (Interesting — I never really thought of fruit as being a simple carbohydrate!)
He explains how the only way to induce a change is to exercise. Exercise creates enough energy that changes pyruvic acid and completes the cycle, so that fat can be released. (Well what do you know! I never thought that exercising creates energy — I always thought that it used energy.)
Herman Aihara goes on to explain the two ways that fat is formed in the body (either the liver or the fatty tissue produces it) — but only the liver breaks down fat. So if you have a weak liver, you will tend to accumulate fat.
He also explains how other factors control the metabolism of proteins, carbohydrates, and fats in the body. All of what he says convinces me that his tips for avoiding obesity are very sensible! The bottom line is that exercise is very important. The cool thing is that it will give you more energy!
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