Decreasing Calories May Extend Lifespan
Body Makes Fewer Free Radicals Which Slows Aging
Aug 4, 2009
The idea of fewer total calories resulting in longer life first came about in 1935. The rats in the experiment (to everyone’s surprise) lived 50% longer and appeared to enjoy life although their calorie intake had been cut by more than 30%.
Everyone today is aware of the dangers of overweight and obesity. These are a result of too many calories taken in for calories expended. A healthy weight usually indicates your calorie intake is the right amount for you. Another way to measure your body status is Body Mass Index (BMI) which many experts feel is a better method as it takes into account fat stores under the skin in various places. Normal BMI range is 18.5 to 24.
Calorie Restriction (CR) was the basis for Calorie Restriction with Optimum Nutrition (CRON) known as the Longevity Diet.
How Calorie Restriction Might Extend Life
Although not completely understood, the theory is that your body sees a famine and goes into survival mode. A “Calorie Restriction Diet” activates the protein sirtuin, which creates enzymes that increase activity of mitochondria and slows cells’ aging process. The cells, therefore, become super-efficient at repairing or removing damage, i.e., that caused by free radicals.
Free radicals are a normal result of cells turning your food into energy, but cause inflammation if your body is bombarded with too many. With a decreased food intake, fewer of these bad boys are produced. In addition, less energy would be required for digestion.
Cautions
- Even if you reduce your calorie intake and obtain adequate nutrients, there is no guarantee you will live a long and healthy life. Genes still play a part in your health and lifespan.
- In addition, long-term CRON could cause complications down the road, such as bone loss, if your requirements are higher or you didn’t have strong bones to begin with. Look up Calorie Restriction Society for more detailed information.
- Begin CR as an adult as it has been shown to stunt growth in children.
Rules for CR
- Do not begin CR if your BMI is 18 or less.
- Have your medical professional perform periodic physicals, including blood tests, to ensure you are receiving proper nutrients.
- Reduce your calories in small increments rather than all at once.
- Stick to a 15-16% total reduction, which studies show is almost as effective as the more drastic reductions (25%) often recommended which might have negative effects. In addition, at higher levels of restriction, all you would think about is food which would not make for a very enjoyable life!
- Do your homework and use software to ensure your diet is adequate in nutrients, low-calorie, but optimum nutrition. Think fruits, vegetables and whole grains.
- Maintain a healthy lifestyle, i.e. exercise, not smoking. The director for Calorie Restriction Society, Bob Cavanaugh, is featured in a web-exclusive article for Newsweek, “Eat Less, Live longer,” but he may be jeopardizing his longevity by continuing some of his habits, i.e. smoking.
Live Long & Joyful
By following basic optimum nutrition guidelines and being reasonable in your quantity of food intake, your life can be full of the enthusiasm that comes from feeling good and being able to do the activities that bring you satisfaction. Remember the goal of CR is not just longevity, but to be healthy and enjoy your whole life.
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