What is obesity

Obesity is defined as having an abnormal increase of body fat which is also called adipose tissue mass. An obese person is 20 percent or more above desirable weight. In the last decade obesity has been on the rise in both women and men.

Scale weight is a total measure of bone, muscle, fluid, organs, and fat. Weight measurements reflected by the bathroom scale or compared to standard height and weight tables does not allow for weight changes which occur due to aging, exercise, or frame size. Therefore, more emphasis should be placed on body composition and healthy lifestyles with less on body weight alone.

As much as 50 to 75 percent of obesity has genetic influences. Just what those genetic influences are that affect body weight have not been identified.

Research points to differences in appetite control and energy expenditure. It is important for obese people not to hold themselves responsible for their condition.

Many people are tempted by ads that use celebrities to tout liquid fasting diets for weight loss. Ads claim quick and easy weight loss with use of such products. Very obese patients may be referred to these types of diets. Their diets are carefully supervised by their healthcare provider.

Medically supervised fasts are very low calorie diets which provide from 400 to 800 calories per day. While most of these diets are low in calories, the protein provision is very high. The purpose of these diets is to promote fat loss, not muscle loss. The high protein content helps prevent large losses of muscle tissue. Electrolytes, vitamins and minerals are also supplemented.

Proper use of these diets requires close monitoring and follow-up. To promote lasting weight loss, lifestyle changes must be made by the dieter while on the fast.

Binge eating can be triggered by many things such as stress, depression, loneliness or anger. Food is used as a way of dealing with issues other than hunger.

Bulimia nervosa is an eating disorder that is estimated to be present in up to 5 percent of teenage and young adult women. It is characterized by binge eating followed by purging and other behaviors such as vomiting. Laxatives, diet pills, water pills, exercise or fasting may also be used.

Drugs for treatments weight loss

The medications most often used in the management of obesity are commonly known as "appetite suppressant" medications. Appetite suppressant medications promote weight loss by increasing metabolism and by decreasing appetite or increasing the feeling of being full. These medications work by increasing the serotonin and/or catecholamine - two brain chemicals that affect mood, appetite and metabolism.

Appetite suppressant medications help weight loss by diminishing appetite or increasing the feeling of being full. These medications diminish appetite by rising serotonin or catecholamine two brain chemicals that affect appetite. Appetite suppressant medications are used with a course of behavioral treatment and dietary counseling, designed to help you make long-term changes in your diet and physical activity.

The most recent drug in the fight against obesity is Xenical. A new class of non-systemic anti-obesity drug called lipase inhibitors which act in the gastrointestinal tract to prevent the absorption of fat by about 30 percent. Drugs in this class do not achieve their effect through brain chemistry or central nervous system stimulation. In other words, Xenical is not an appetite suppressant or metabolic inducer.

Several appetite suppressant medications are available to treat obesity. In general, these medications are effective, leading to an average weight loss of five to twenty-two lbs. above that expected with non-drug obesity treatments.

People respond differently to appetite suppressant medications, and some people experience more weight loss than others. Some obese patients using medication lose more than 10 percent of their starting body weight- an amount of weight loss that may reduce risk factors for obesity - related diseases, such as high blood pressure or diabetes.

Over the short term, weight loss in obese individuals may reduce a number of health risks. Studies looking at the effects of appetite suppressant medication treatment on obesity-related health risks have found that some agents lower blood pressure, blood cholesterol, triglycerides (fats) and decrease insulin resistance (the body's inability to use blood sugar) over the short term. Long-term studies are currently being done to determine if weight loss from appetite suppressant medications can improve health.

Most studies of appetite suppressant medications show that a patient's weight tends to level off after four to six months while still on medication treatment. While some patients and physicians may be concerned that this shows tolerance to the medications, the leveling off may mean that the medication has reached its limit of effectiveness. Based on the currently available studies, it is not clear if weight gain with continuing treatment is due to drug tolerance.

However obesity, is more appropriately considered a chronic disease than a lifestyle choice. Other chronic diseases, such as diabetes, and high blood pressure, are managed by long-term drug treatment, even though these diseases also improve with changes in lifestyle, such as diet and exercise. Although this issue may concern physicians and patients, social views on obesity should not prevent patients from seeking medical treatment to prevent health risks that can cause serious illness and death.

Overweight or overfat?

Many people may actually be overfat but not overweight. Fat can also be hidden throughout the body. A person may be overfat without the appearance of being overweight. As we age, muscle tissue is replaced with fat. This occurs despite regular exercise.

Body composition describes the percentages of fat, muscle and bone in your body. Many experts think men's bodies should be between 12 to 18 percent fat, while women's should be 18 to 22 percent fat.

The risk of developing weight associated medical problems increases if the majority of body fat is located in the abdominal area. This risk decreases if body fat is primarily located in the hips, buttock and thigh region.

Terms interpreting

FDA

• Food and Drug Administration: A government agency that oversees public safety in relation to drugs and medical devices. The FDA gives approval to pharmaceutical companies for commercial marketing of their products.

Fat blocker

• Drugs that block the absorption of fat or calories, and lose substantial weight.

Overweight

• Weighing more than is normal, necessary, or allowed, especially having more body weight than is considered normal or healthy for one's age or build.

Appetite

• An instinctive physical desire, especially one for food or drink. Decreased desire to eat is termed anorexia, while polyphagia (or "hyperphagia") is increased eating. Disregulation of appetite contributes to anorexia nervosa and cachexia, or oppositely, overeating.

Diabetes

• Any of several metabolic disorders marked by excessive discharge of urine and persistent thirst, especially one of the two types of diabetes mellitus.

Diet

• A regulated selection of foods, as for medical reasons or cosmetic weight loss.


• A solutions designed to reduce or suppress the appetite.

Fat

• Any of various soft, solid, or semisolid organic compounds constituting the esters of glycerol and fatty acids and their associated organic groups.

Obesity

• The condition of being obese; increased body weight caused by excessive accumulation of fat.

Stress

• A state of extreme difficulty, pressure, or strain.


• A physical and psychological response that results from being exposed to a demand or pressure.

Suppress

• To curtail or prohibit the activities of.


• To inhibit the expression of (an impulse, for example).


• To bring to an end forcibly as if by imposing a heavy weight.

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