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Showing posts with label BMI. Show all posts
Showing posts with label BMI. Show all posts

Friday, 17 June 2011

Are You Really Overweight?

If you are overweight, you know it by how you feel, how your clothes fit or how you look.  But, by how much are you really overweight? And how much weight do you need to lose? One measure of how much you should weight is by determining your Body Mass Index, BMI. This index gives you the relationship of your weight to your height. Here is the formula:

Your BMI = [(yourWeight)/(your Height x your Height)] x 705

If you weight 143 lbs and are 64 in tall, then

your BMI = [(143) / (64 x 64)] x 705 = 26.2.  Based on the chart below a BMI of 26.2 is overweight.

·    underweight, BMI = 18.5
·    normal weight BMI = 18.5 - 24.9
·    overweight BMI = 25 - 29.9
·    slight obesity BMI = 30 - 34.9
·    obese BMI = 35 - 39.9
·    excess obese = BMI = greater than 40

If we consider the normal BMI number to be 21.5 then you can compute approximately how much weight you should lose using the same BMI formula but by changing things around in the formula,
(your ideal Weight) = [(normal BMI / 705) x (your Height x your Height)]

For the example above if you have a BMI = 26.2 and the normal BMI number = 21.5, then,

(your ideal Weight) = [(21.5/705) x (64 x 64)] = 124.91

 you should weight 124.91 lbs. That means you need to lose (143 -124.9) lbs = 18.1 lbs.

Try to get your BMI below 25. Under this number, you can expect to have good heath if you are eating the right kinds of food and exercising regularly. If your BMI is greater than 28, you are more likely to have cardiovascular diseases, diabetes, and many other diseases related to a toxic colon.

Keep track of your waistline. Your waistline, if you are a man, should be less than 35 ". For women it should be less than 30". As your waistline get larger you become more susceptible to diseases. Of course, waistlines are going to vary because people have different shapes. But you know if your waistline to big for your shape.

Now you should know how much weight you need to lose. Beside your waistline, you should also measure bust/chest, hips, and thighs.. This gives you an indication how your body is changing. As you lose fat you may not lose weight for a while. Your body will become toned as you exercise. The weight scale does not always tell you that your body is changing and losing weight.

Wednesday, 15 June 2011

After A Diet, Why Does The Weight Come Back?

Before many Australians recently, a devastating story unfolded on a popular current affairs program. We watched with compassion as the fattest man in Australia told of his most recent, serious attempt to lose weight. Approximately 12 months earlier and weighing close to 300 kilos, he under went life threatening surgery to lose weight.

I doubt there would have been one person watching not moved by this man's depression and plight. Despite undergoing the surgery, today he could barely get through each day, both physically and mentally. He shared with us his sense of hopelessness and wanting to end it all.

It was not only his size that was causing his depression. He had to deal with a heart broken by disappointment.

You see, the surgery had been a success.

He soon lost well over 50 kilos post operation and he and his family rejoiced. But then the unthinkable happened.

The weight came back. Today he weighs well <i>over</i> 300 kilos - more than before the surgery.

This is an extreme case, but nonetheless raises a question that so many people continue to battle with.

After a diet, why does the weight come back so quickly?

To answer this we need to understand how much energy a body requires. For each pound you weigh, each day you need 12 calories to maintain your body weight. If you weigh 120 pounds you will need 120 x 12 calories, that is, 1440 calories per day to maintain that body weight. If you eat or drink more calories than your body requires, the excess energy is stored as fat. It takes 3,600 excess calories to make one pound of fat.

In this example, if your typical daily calorific intake is 2000 calories, in around 30 days you would put on between 4-5 pounds of fat!

Let's say, you then decide to go on a restrictive diet and halve your calorific consumption to 1,000 calories per day. You stay on this diet for around a month and lose 10 pounds and now weigh 110 pounds. You feel fantastic about losing the weight but can't keep up such a restrictive regime because you are irritable and have no energy.

So you go off your diet and go back to your usual routine of 2,000 calories a day. Remember you are lighter now and your body requires less energy to maintain its new weight. You would now require 110 x 12, that is, 1320 calories per day.

In this instance, by consuming 2000 calories daily, because you are lighter than before, you would put the weight back on in just 24-25 days!

If you want to keep the weight off you must develop a consistent change in eating habits to ensure you do not consume more than your body requires. You cannot continue to eat the same quantities and/or combinations of foods that caused you to be overweight in the first place. This will require developing an understanding of the nutritional content of food and raising your body's metabolism through increased muscle mass and exercise.

(c) 2003 Kim Beardsmore

Friday, 10 June 2011

10 Real Life Diet Tips

Are you tired of diet tips handed out by someone with apparently unlimited income and time? For some of us, it may just not be practical to spend half of our Sunday preparing carefully portioned meals for the rest of the week, or financially feasible to buy all our meals prepackaged in just the right portions. And there are those of us who cringe at the thought of weighing food to achieve 'optimal portion sizes'. Here are ten real life diet tips for the rest of us.

1. Eating out? Restaurant portions tend to be enormous, and if it's on the plate, we tend to eat it. If it's possible, order from the kid’s menu, where portions are more reasonably sized.

2. Keep healthy snacks around and easily accessible. A bowl of fruit on the kitchen table, a container of celery or carrot sticks in the refrigerator, or a couple of pop-open cans of fruit salad in your desk at work will help you grab for something healthy when those first hunger pains begin. In other words, you'll be more likely to grab something low-calorie and good for you if it's easy to eat.

3. Substitute frozen vegetables for canned. Canned veggies tend to be high in sodium, which you don't need, and low in real nutrition, which you do. Buy economy size bags with zip closures to make it easy to pour out a single serving for a meal.

4. Buy a vegetable steamer. Steaming is one of the healthiest ways to cook vegetables. The food retains nearly all of its natural nutrients instead of leaching it out into the cooking water. Even better, it makes your veggies taste great - which means you'll be more likely to eat them instead of filling up on fatty foods that pack on weight.

5. Never eat standing up. One of the easiest ways to sabotage your diet is to 'eat without thinking'. Treat eating with the respect that it deserves. Fix yourself a plate. Sit down and eat properly. You'll be less likely to just pop food into your mouth without paying attention.

6. Spread your meals out. When you eat three meals a day, your body tends to store whatever it doesn't need right that moment. By adopting a 'grazing' habit, you'll keep your metabolism working throughout the day. Have a small breakfast, a piece of fruit with crackers or toast at mid-morning, a light lunch and an 'after school snack' mid-afternoon. Just remember that you're breaking up the same amount of food into smaller meals, not ADDING more food into your daily diet.

7. Grab a fruit juice or flavored water instead of soda. Soda is nothing but empty calories. No nutrients, lots of sugar. Instead, grab a bottle of 100% fruit juice, or water flavored with a spritz of fruit.

8. Drink water. Even the FDA recommends at least 8 full 8 ounce glasses of water a day to keep your body working right. When you're dieting, you should drink even more. It's not just that full feeling - water helps your body digest foods properly and cleans out your system.

9. Can't afford a gym membership? Make a pact with friends to exercise together. Make a date at least three times a week to play volleyball, take a walk or spend half an hour doing something active.

10. Skip the potato chips. Fatty snacks fried in hydrogenated oil like potato chips contribute fat and calories and not much else. Instead, grab a handful of dried fruit or a cup of yogurt for the same amount of calories and a lot more nutritional benefit.