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January 29 2005
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First New Government Diet Guidelines Since 1980

 
Exercise

With about 65 percent of Americans overweight or obese, the United States government has been motivated to make some major changes to the Dietary Guidelines for Americans. For the first time since 1980, the new guidelines are emphasizing weight loss, in addition to healthy eating and cardiovascular health. (The changes are also being used to update the Food Guide Pyramid.)

Some of the new recommendations include:

  • Balance calories between the amount you eat and the amount of energy you burn. For moderately active people between the ages of 31 and 50, recommended calories include 2,000 per day for women and 2,400-2,600 for men.

  • Thirty minutes of exercise is minimum. To maintain weight and prevent weight gain exercise 60 minutes; exercise 60 to 90 minutes a day to sustain weight loss.

  • Eat at least 4.5 cups of fruit and vegetables a day if you have a 2,000-calorie diet. Eat more or less depending on the calorie level.

  • Eat fiber-rich whole fruits and vegetables and whole grains often. Eat or drink little added sugar or caloric sweeteners.

  • Limit salt intake to about one level teaspoon a day.

  • Keep trans fat as low as possible. Do not exceed more than 10 percent of your calories from saturated fat and no more than 300 milligrams of cholesterol a day.

The food industry has also made some alterations, offering more products with whole-grains, fewer calories and smaller portion sizes.

Will These Guidelines Work?

Though these guidelines are proposed to help Americans slim down and get on the path to a healthier lifestyle, some medical professionals question whether these guidelines will make a difference.

One critic stated, "I don't think many people read them or understand them because the government puts very little muscle into marketing them."

Conversely, others feel these changes are a move in the right direction. One doctor stated, "These guidelines are a clear step ahead of where previous ones were. The issues on weight control are more specific than in the past, specifically with exercise and the suggestions on limiting added sugars and caloric sweeteners and things like soft drinks."

Either way, the Dietary Guidelines for Americans 2005 have been set, and the government can only hope the changes will result in a thinner, healthier population.

USA Today January 13, 2005.

New York Times January 13, 2005



Dr. MercolaDr. Mercola's Comments:

The changes made to the Dietary Guidelines for America are certainly a smart move. I am especially fond of the one recommending 60 to 90 minutes of exercise daily to sustain weight loss, seeing as though I have been saying for years the key factor to building optimal health for those who have insulin resistance and need to lose weight is a 90-minute "dose" of exercise daily!

My philosophy: Exercise really needs to be viewed as a drug -- it's that powerful!

In addition to powerful influences on weight control exercise also boosts your immune system by helping you increase your circulation and the blood flow throughout your body. Components of your immune system such as neutrophils, lymphocytes, cytokines, inteferons and many other important factors are also better circulated, which means your immune system has a better chance of finding an illness before it has a chance to spread and make you sick.

You can review some of the previous articles I have run on exercise:

However, very few clinicians and patients fully appreciate the amazing power of optimally performed cardiovascular exercise

In fact, most of the patients I see have serious exercise debts. Many are motivated to exercise but believe that simple walking will suffice. While walking is excellent, for nearly everyone the benefits rapidly wear off as it is such a gentle exercise. To continue to receive insulin-improving benefits one needs to increase the exercise dose as one improves their fitness level.

So if you only walk for 30 minutes a few times a week and are overweight this amount of activity will never be sufficient to repay your exercise debt. That is why I tell people if they are overweight and they wish to achieve ideal body weight then they need to move towards 90 minutes of cardiovascular exercise every day. (This amount of exercise is only required in the treatment phase though, and you can cut back to 45 minutes three times a week once you become healthy.)

Exercise Setbacks

One problem many people run into with exercise is that they are severely time-deprived. If this is the case, I ask them to stop directing their limited time to strength training and direct to cardiovascular training until they are able to optimize their weight. If they have time left over after investing 90 minutes in a cardio program, then I encourage them to continue their weight-training program.

Additionally, most people are clueless about exercise intensity and just don't understand that walking for 90 minutes isn't a sufficiently intense exercise. The proper exercise intensity is to go hard enough so that you are having a difficult time talking to someone and then slightly decrease the intensity. Note: If you can easily carry on a conversation with someone next you, then you are clearly going too slow to generate the aerobic benefits that exercise is capable of doing.

One of the key principles I teach, though, is to listen to your body.

If your body will not allow you to exercise, either due to pain or worsening of an underlying condition, then you have no practical option but to honor your body's signals and limit your exercising temporarily. Even though your body desperately needs the exercise to improve, you may only get worse if you exceed your current limitations. So you may have to start with as little as one or two minutes a day. Apply the Total Health Program and as your body gradually improves so will your tolerance to exercise. Then you can continue to push yourself until you reach that 90-minute level.

Related Articles:

Exercise Benefits For You

Is Exercise Nothing but a big, FAT Waste of Time?

Exercise Can Reverse Pre-Diabetes

Free Tool to Set and Meet Exercise Goals

Are Exercise and Diet Equally Important?

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