Saturday, December 8, 2012

Weight-Loss Drugs: PiLLs anD suPPLement

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Weight-loss drugs are intended to enable patients to lose weight more effectively than diet or exercise alone by suppressing appetite, inhib- iting the absorption of fat, or in some cases,
increasing the metabo- lism slightly. Maximum weight loss as a direct result of the drugs will generally show results within the first six months. A patient could also lose weight due to the drugs
be a moderate weight loss.
The length of time during which a person wilcontinue to lose weight as a direct result of the weight-loss drug depends on how long it takes his or her body to adjust to the medication. Despite the efficacy of weight-loss drugs, the likelihood of losing significant weight without also increasing exercise or making dietary changes is unlikely. For this reason, patients should always incorporate at least some form of exercise and dieting as part of their weight-loss plan. Even if a patients weight loss has leveled and he or she has reached a target weight, the individual must continue to take the medication to maintain the weight loss; this is controversial because some doctors believe the safety of taking many of these drugs for decades is not yet well known. We know that many weight-loss drugs cannot be taken long term, and therefore the patient must switch to another weight-loss drug, further increase exercise, or adjust his or her diet.
Weight-loss drugs are generally prescribed for people who are obese, not those who are slightly overweight or those looking to get ultra-slim. The most common guideline used to determine who is underweight, normal weight, overweight, or obese, is the body mass index after the first six months, but it
(BMI). The body mass index is a guideline of how appropriate a persons weight is given his or her height. BMI is a number that represents weight divided by height squared. The Centers for Disease Control and Prevention (CDC) and the World Health Organization (WHO)  define the weight status categories with BMI ranges for adults in the following table

BMI
Weight Status
Below 18.5
Underweight
18.5–24.9
Normal
25.0–29.9
Overweight
30.0–39.9
Obese
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