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The Secret to Successful Weight Loss is having an online Weight Loss Program.
Nutrisystem Mission
Statement
Our weight loss program is unlike any other. We provide a wide selection of prepackaged foods designed to keep our clients on track toward their weight loss goal. In addition to providing delicious diet foods, our website gives our clients information and services designed to provide the weight loss diet answers they desire and the diet and nutrition support they require. nutrisystem.com - Lose weight - Now!
Nutrisystem History
We began nutrisystem.com in August 1999
with the goal of becoming the leading online provider of weight loss programs
and diet products. We've combined the proven Nutrisystem
weight loss program and delicious diet
foods with the
power and scope of the Internet. As part of our free client services, we provide
individualized calorie plans and meal guides, exercise education plans and help
with diet maintenance. Through this comprehensive program, you can track your
diet, order portion-controlled foods and participate in exclusive online weight
loss counseling sessions--all from the privacy of your home or office. Our site also
features online seminars, chats and a regularly updated newsletter. nutrisystem.com - Helping people lose weight for over 25 years!
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A self-administered questionnaire of a nationally representative sample of high school students showed that 44 percent of female and 15 percent of male students were trying to lose weight; 26 percent of female and 15 percent of male students were trying to keep from gaining weight.
Concerns about future and current health, fitness, and appearance were cited frequently by survey respondents as the most important reasons for trying to lose weight. Health concerns were cited more frequently by persons with higher BMI; appearance and fitness concerns were cited more frequently by persons with lower BMI. Appearance was more important than fitness to women, whereas the reverse was true for men. Other reasons cited included trying to lose weight gained after smoking cessation or pregnancy.
In another survey of adults, diet and exercise were the most frequently cited methods for both men and women attempting weight loss, each at a frequency of more than 80 percent . Vitamins, meal replacements, over-the-counter products, participation in a weight loss program, and diet supplements were cited by both sexes in decreasing order from 28 percent to 3 percent . The methods used varied with BMI.
Students reported using the following weight loss methods in the week
preceding the survey: exercise (51 percent of females and 30 percent of males),
skipping meals (49 percent and - percent ), using diet pills (4 percent and 2
percent ), and self-induced vomiting (3 percent and 1 percent ). The percentage
of students who reported ever using these methods was generally much higher:
exercise (80 percent of females and 44 percent of males), diet pills (21 percent
and 5 percent ), and vomiting (14 percent and 4 percent ). Order today:
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For most weight loss methods, there are few scientific studies evaluating their effectiveness and safety. The available studies indicate that persons lose weight while participating in such programs but, after completing the program, tend to regain the weight over time. Further, there are examples where weight loss strategies have caused medical harm. Thus, the panel cautions that before individuals adopt any weight loss program, the scientific data on effectiveness and safety be examined. If no data exist, the panel recommends that the program not be used. The lack of data on many commercial programs advertised for weight loss is especially disconcerting in view of the large number of Americans trying to lose weight and the over $30 billion spent yearly in America on weight loss efforts. Some research data and considerable anecdotal information support successful short-term loss for some users of these programs; however, data are limited on the proportion of persons who complete programs, how much weight they lose, and their success in maintaining the weight loss.
Considerable diversity in response exists within each of the broad categories of weight loss strategies. Success rates can be expected to vary according to initial weight, the length of the treatment period, the magnitude of weight loss desired, and the motivation for wanting to lose weight. The effectiveness of unsupervised efforts to lose weight is difficult to judge because of limited data on strategies, compliance, and follow-up. Surveys indicate that many overweight persons have tried to lose weight on multiple occasions; because many of these persons presumably are using these unsupervised strategies, their long-term success rates may be low.
Weight loss at the end of relatively short-term programs can exceed 10 percent of initial body weight; however, there is a strong tendency to regain weight, with as much as two thirds of the weight lost regained within 1 year of completing the program and almost all by 5 years. Importantly, however, a small percentage of participants do maintain their weight loss over more extended periods. Key aspects of the evaluation of programs are their duration and dropout rates. The duration of most programs appears to be from several weeks to a few months. Dropout rates can be as high as 80 percent and seem to vary considerably.
Two levels of caloric restriction are commonly used. The low-calorie diet (LCD) of about 1,000 to 1,500 calories (approximately 12 to 15 Kcal/kg body weight) per day may involve a structured commercial program with formulated and calorically defined food products or guidelines in selecting conventional foods. The very-low-calorie diet (VLCD) at 800 (approximately 6-10 Kcal/kg body weight) or fewer calories per day is conducted under physician supervision and monitoring and is restricted to severely overweight persons. Both diets may produce adverse side effects, including excessive loss of lean body mass. Attempts to use VLCD's in unsupervised settings have been associated with severe complications. In the short term, VLCD's produce greater weight loss than do LCD's; however, with both types of programs, participants tend to return to preprogram weight within 5 years.
There is evidence that altering the proportion of the calories in the diet from fat, carbohydrate, and protein can have a limited effect on weight loss; however, the effects appear to be quite small in comparison with the direct effect of caloric restriction.
When used alone, the typical program takes about - weeks and can generate a 1- to 1.5-pound/week weight loss. Typically about one third of this weight will be regained at the end of 1 year and most regained by 5 years. As with other methods, however, a small percentage of participants are able to maintain weight loss over an extended period.
Phenylpropanolamine, an over-the-counter appetite suppressant approved by the Food and Drug Administration, has some efficacy in producing weight loss. The long-term benefit of this drug is not well documented, and as with other over-the-counter preparations, there is potential for its misuse.
The effectiveness of the different weight loss programs may vary among
different cultural groups; however, the data to evaluate this possibility are
limited. As these programs are studied further, it is important to consider that
some may also be effective in preventing overweight. Order today:
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The incidence and severity of no insulin-dependent diabetes mellitus and hypertension in overweight persons are reduced by weight loss. Recent studies have shown that a diet and exercise program leading to weight loss can prevent the onset of hypertension and that the same may be true for diabetes mellitus. Persons with diabetes who can lose weight will improve glycemic control and may eliminate their need for oral agents. Similarly, randomized trial data indicate that weight loss in hypertensive patients is also associated with significant reductions in blood pressure and the need for continued drug therapy. Weight loss also affects other risk factors for cardiovascular disease: The positive effects on lipid and lipoprotein levels are well documented. Given the high likelihood that weight will be regained, it remains to be determined whether these time-limited improvements confer more permanent health benefits.
Among very obese individuals, weight loss has been followed by greater functional status, reduced work absenteeism, less pain, and greater social interaction. The prevalence and severity of sleep apnea also can be substantially reduced by weight loss, but monitoring for weight regain is important.
Very-low-calorie diets and fasting are associated with a variety of short-term adverse effects. Patients frequently report fatigue, hair loss, dizziness, and other symptoms, but these appear to be transitory. More serious is the increased risk for gallstones and acute gallbladder disease during severe calorie restriction. Serious complications such as cardiac arrhythmias or death, seen in early studies, have largely been eliminated by enriching diets with high-quality protein, minerals, and electrolytes.
Data on short-term adverse health effects of weight loss come from programs that only include overweight persons. Some of these effects may be greater in persons who are not overweight but are severely restricting calories. Laboratory evidence suggests that weight loss in lean persons leads to a greater proportional loss of lean body mass than in severely overweight persons and may well increase adverse effects such as fatigue.
Participants in formal weight loss programs may reduce baseline depression and anxiety, but only if they successfully lose weight. Little is known about the emotional impact of lesser degrees of success or of failure. There also is increasing evidence that mildly to moderately overweight women who are dieting may be at risk for binge-eating without vomiting and purging. Whether involvement in a well-designed dietary modification program increases the risks for bulimia is unknown and in need of careful study.
The evidence that reductions in mortality follow weight loss is meager. Most epidemiologic studies suggest that weight loss is associated with increased mortality, although in most of these studies the reason for weight loss is not known. Intentional weight loss during healthy states cannot be distinguished from that associated with illness, psychosocial distress, or other reasons. Finally, the fact that many people who stop smoking gain weight complicates the interpretation of the data on weight gainers and weight losers. Thus, although the data on higher mortality are provocative, they are not sufficiently conclusive to dictate clinical practice. Specific research efforts to address this question are urgently needed.
Data on the health effects of repeated weight gains and losses, or weight cycling, are also inconclusive. Weight cycling appears to affect energy metabolism and may result in faster regaining of weight, but the evidence that cycling has longer term negative effects on psychological and physical health needs confirmation.
Although currently used weight-reducing drugs appear to be safe in controlled
studies, the studies are short term and have involved populations where the
potential for abuse may be low. The fact that many adolescents and young adults
use over-the-counter preparations urges further study of their safety in
real-world use. Order today:
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Contraindications to nonsupervised weight loss exist for severely overweight persons, pregnant or lactating women, children, persons over the age of 65, and those with medical conditions that make such an undertaking dangerous. A trained physician or other health professional should assess contradictions and screen for preexisting eating disorders or underlying psychological problems. For persons at high medical risk, a properly trained physician should be involved in a multidisciplinary approach to care throughout the weight loss process. Diets of 800 or fewer calories per day should not be undertaken without medical supervision and monitoring because of attendant health risks.
For those within the healthy weight range who desire to lose weight for other reasons, such as improved appearance or sense of well-being, the decision to lose weight should take into account the difficulty of the task as well as the potential adverse physical and psychological effects of weight loss regimens. These effects include the risk of poor nutrition, possible development of eating disorders, effects of weight cycling, and the sometimes serious psychological consequences of repeated failed attempts to lose weight.
No matter how much weight one would like to lose, modest goals and a slow course will maximize the probability of both losing the weight and keeping it off. In setting goals, it should also be recognized that even in highly structured, medically supervised plans, the dropout rate is often high, and even for those who complete the program, maximum weight loss rarely exceeds 10 percent of the initial body weight. The rate of weight loss in these plans is generally less than 1.5 pounds per week. In addition, if the pattern of eating and activity is not permanently altered after the conclusion of the structured portion of such programs, most participants will regain lost weight over the next 1 to 5 years. In less structured or self-monitored settings, the degree of weight loss and maintenance is unknown. These realities should help an individual avoid disappointment by providing guidelines for reasonable goals for how much weight one wants or needs to lose, how fast one wants to lose it, and how long weight loss can be maintained. These facts also should help one recognize that, for most people, achieving body weights and shapes presented in the media is not a reasonable, appropriate, or achievable goal, and thus the failure to do so does not represent a weakness of will power or character. Other characteristics to consider in setting weight loss goals include weight history, the weights of biological relatives, the outcomes of past weight loss efforts, and the individual's emotional profile.
Important considerations when choosing a weight loss method or program include personal food preferences; the desire for structure in the program; and the degree of support in the home, workplace, or a chosen group. Logistic details to consider include time; money (for the costs of programs and special diet foods or supplements); transportation; and the ability to integrate the eating pattern of the dieter with others in the home, particularly if the dieter is a primary food preparer.
In evaluating a weight loss method or program, one should not be distracted by anecdotal "success" stories or by advertising claims. Information about program success that should be obtained includes
Valid and reliable statistics of this kind are important but not routinely provided by commercial diet plans or programs. Such data, preferably in the form of peer-reviewed published studies, should be available for all supervised programs, including those based in hospitals or clinics.
Additional information on program characteristics that should be obtained includes
The most important feature of a successful weight loss program is maintenance of stable weight or of reduced weight. In formal programs, continued regular contact with a supervising professional may be necessary to maintain weight loss. In any case, new eating behaviors must be learned and adopted, which can be difficult. These behaviors include modifying quantity and kinds of food, and possibly developing a different attitude toward eating and toward oneself. Therefore, an individual weight loss diet method should be based not merely on weight loss goals but should become part of a general long-term approach, the goal of which is better health. This goal should reflect accepted guidelines for healthful eating. Even though a caloric deficit must be achieved, the diet must provide all essential nutrients. A regular exercise regimen, which could be as simple as walking, is essential both to better health as well as long-term weight loss maintenance.
Methods whose primary goal is short-term rapid or unsupervised weight loss, or that rely on diet aids such as drinks, prepackaged foods, or pharmacologic agents but do not include education in and eventual transition to a lasting pattern of healthful eating and activity, have never been shown to lead to long-term success. It has been fairly said that such programs fail people, not vice versa. Recognition of this by society and individuals and a focus on approaches that can produce health benefits independently of weight loss may be the best way to improve the physical and psychological health of Americans seeking to lose weight.
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See Part Two of this Nutrisystem Exclusive article
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