What You Should Know Before You Start A Weight Loss Plan
Know your Body Mass Index (BMI)
Over the past twenty years, Americans have become more familiar with specific measurements related to health, such as cholesterol levels and blood pressure readings. When it comes to weight-related health risks, there are three important numbers that you should know. The first is your actual weight in pounds; the second is your Body Mass Index, or BMI; and the third is your waist measurement.
Your BMI is based on your height and weight. Doctors consider BMI to be a better measure of health risk than your actual weight in pounds. In fact, the medical terms "overweight" and "obesity" are based on BMI values. A BMI of between 25 and 30 is defined as overweight, and a BMI of 30 or more is considered obese. The higher your BMI, the greater your risk of developing a weight-related illness, such as type 2 diabetes or heart disease.
What is your BMI? Are you overweight or obese? You can find out by using the BMI Calculator or BMI Chart (PDF file: 1 page / 20 KB; More information about PDF files). The same BMI scale applies to both men and women.
What is your waist circumference?
Body fat that accumulates in the stomach area (described as "abdominal obesity") is more of a health risk than body fat that builds up in the buttocks and thigh areas. For this reason, your waistline provides valuable information about your risk for heart disease, high blood pressure, high cholesterol, and type 2 diabetes. Doctors consider a waist circumference too high if it is 40 inches or more in men, or 35 inches or more in women.
Consulting your doctor about controlling your weight
Talk to your doctor about healthy eating and physical activities that can help you lose weight, improve your fitness and decrease the chances of developing heart disease, high blood pressure or type 2 diabetes. Be sure to set realistic goals. Small changes can make a surprising difference in your health. Your doctor can offer practical suggestions that do not require a complete overhaul of your current way of life. In some cases, your physician may refer you to a nutrition specialist, such as a registered dietitian, for in-depth counseling about food choices. You may want to start the conversation by asking a few questions of your own. For example:
What is Metabolic Syndrome?
A high waist circumference can be one sign of a condition called Metabolic Syndrome. Although most people have never heard of it, this syndrome is quite common; it affects about one out of every four adults in the United States. Metabolic Syndrome often progresses to type 2 diabetes—and treating the syndrome can help prevent this form of diabetes.
A person has Metabolic Syndrome if they have at least 3 of the 5 conditions listed in the table below. If you think you may have Metabolic Syndrome, it is important to discuss the possibility with your doctor so that you can undergo the appropriate diagnostic tests. Treatments for Metabolic Syndrome involve basic lifestyle changes, such as losing weight, eating a healthier diet, and increasing your activity level. Your doctor can help you develop a specific plan for making the necessary changes.
More Information on Metabolic Syndrome
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Condition
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Treatment: Lifestyle Changes
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Practical Suggestions
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Abdominal obesity Men: greater than 40 inches
Women: greater than 35 inches
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Weight loss
Increased physical activity
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Cut 250 calories a day*; lose 1/2 pound a week; aim for losing 20 pounds in a year
30 minutes of moderate activity 5 days a week
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High blood pressure
130/85 mm Hg or greater
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Weight loss More fruits and vegetables |
Aim for 20-pound loss/year |
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Low HDL (good) cholesterol
Men: less than 40 mg/dL
Women: less than 50 mg/dL
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Stop smoking Cut carbohydrates, eat more monounsaturated fats
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Aim for 20-pound loss/year |
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High triglycerides level
150 mg/dL or greater
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Weight loss |
Raise omega-3 fatty acids Aim for 20-pound loss/year |
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High blood sugar after fasting
110 mg/dL or greater
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Weight loss |
Aim for 20-pound loss/year* |
*(For example: replacing two 12-ounce cans of sugar-sweetened soda with a beverage sweetened with a sugar substitute can cut over 350 calories per day.
How to get active
Regular physical activity has been shown to help prevent heart disease, type 2 diabetes, osteoporosis and other chronic conditions. It is important for maintaining good health in all adults and children, regardless of whether their weight is a problem or not. As the following suggestions make clear, lifestyle changes do not have to be drastic. Simple measures applied every day can make a significant difference over time. Here are a few examples:
How Active Are You?
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Moderate physical activity
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Hard physical activity
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Very hard physical activity
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Walking a mile in 15-20 min (3-4 mph)
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Walking or jogging (12 min/mile)
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Jogging (<10 min/mile)
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Treading water
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Swimming laps (light effort)
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Swimming laps (vigorous effort)
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Bicycling (10 mph)
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Bicycling (12 mph)
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Bicycling (> 14 mph)
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Dancing or tai chi
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High impact aerobics
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Step aerobics (6- to 8-in steps)
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Yard work/gardening
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Mowing lawn with hand mower
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Digging a ditch
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Hiking
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Playing doubles tennis
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Playing singles tennis
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Vacuuming
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Moving furniture
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Playing basketball or soccer
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Playing actively with children
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Weight lifting
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In-line skating
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Adapted with permission from Blair SN, Dunn AL, Marcus BH, et al. Active living every day: 20 Weeks to lifelong vitality. Champaign, Ill.: Human Kinetics; 2001.
Conditions and medications that may prevent weight loss
In some people, overweight or obesity may be related to a medical condition, or a medication they are taking, which interferes with their weight loss efforts. If you have, or think you might have, any of the conditions on this list, or you are taking any of the medications listed, speak with your doctor about measures you should take to manage your weight. In some cases, specific treatments for your medical condition, or a switch in medications, can make a difference in your efforts to manage your weight.
Some Medical Conditions that May Make it Difficult to Lose Weight
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Category
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Condition
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Hormonal Disorders
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Hormonal disorders |
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Cardiovascular
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Congestive heart failure |
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Sleep
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Obstructive sleep apnea |
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Eating Disorders
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Bulimia |
Medications that May Cause Weight Gain
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Condition
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Medication
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Allergies
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Antihistamines
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High blood pressure
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Alpha blockers |
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Contraception
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Progestins
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Depression
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Tricyclic antidepressants
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Diabetes
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Insulin |
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Epilepsy
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Valproate
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Manic-depressive illness
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Lithium
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Schizophrenia
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Neuroleptics
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Can diet pills and supplements help with weight loss?
Although diet drugs may help you lose weight at first, they usually don't help you keep the weight off and may have damaging side effects. Most diet pills have not been tested by the Food and Drug Administration, which means you can't be sure if the drugs are safe. Taking drugs also does not help you learn how to change your eating and exercise habits. Making lasting changes in these habits is the way to lose weight and keep it off.
Written by familydoctor.org editorial staff.
http://familydoctor.org/online/famdocen/home/healthy/food/improve/788.html
American Academy of Family Physicians
Reviewed/Updated: 11/09
Created: 02/04
Dr. Tytko is the team physician for Oakwood High School.

A Partner of Alliance Physicians, Inc.