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Diets and General Health Advice

The fact that more than 20% of the United States adult population is obese presents a major public health concern. However, the failure to follow through and maintain weight loss on their own, after termination of counselling, makes the long-term success of weight loss programs difficult to achieve.

Health professionals often assume that patients will dutifully comply with recommendations simply because they are urged to do so. The magnitude of noncompliance has been well documented. Adherence to dietary programs is thought to be poorer than to medication regimens. [Glanz, K.: Dietitians' effectiveness and patient compliance with dietary regimens. JADA 84:444, 1984.] Dietary regimens are often restrictive, require changes in life-style and behaviours, interfere with family habits and customs, and are of long duration.  You must also be aware that health insurance these days incorporate dietary history when calculating premiums.

Weight control methods are considered a success if weight loss is maintained without expense to overall health. A goal of any successful weight reduction program is to promote permanent life-style changes. The physical and psychological consequences of repeated weight fluctuations may be more harmful than maintaining some degree of overweight. [Rock, C.L., & Coulston, A.M.: Weight control approaches: A review by the California Dietetic Association. JADA 86:44, 1988] The ultimate goal of all weight loss programs is to reduce nutritional risk factors associated with chronic diseases by increasing consumer awareness of healthy food choices.

In 1992 over 49 million people were dieting. The National Council Against Fraud estimates that quackery costs consumers between $25 billion and $50 billion a year - and nutrition fraud is the most common type. [Legislative Highlights, Journal of the American Dietetic Association. Page 648 - 650. May 1990]

Therefore to identify a quality weight loss program, and not to be misled by a "fad diet", the following indicators must be considered:

  • A variety of foods. Weight control programs should be individualized to fit people's life-styles and food preferences. Individualization diminishes feelings of deprivation, which lead to discouragement, bingeing, and rebound weight gain - all hallmarks of the yo-yo diet syndrome.
  • Enough calories to maintain good health. Consuming less than 1200 kcal a day may result in loss of muscle instead of fat and may compromise nutritional status as a result of deficient nutrient intakes.
  • Realistic weight loss goals. To lose body fat and not just water, a maximum weight loss of 2 pounds per week is advised.
  • Regular exercise. Especially as we age, exercise can be the key to weight loss and maintenance of a desirable weight.
  • Behaviour modification. Registered dietitians counsel people to keep lost weight off by helping them alter their eating behavior and responses to foods for the rest of their lives.

Unfortunately, a current trend toward the view that a single food is either a panacea or a poison is being gradually adopted by major health associations. This "good food/bad food" dichotomy ignores the consensus among nutritionists that all foods can be compatible with health when used in moderation as part of a balanced, varied diet.

Over the past decade people have become obsessed with the nutritional value of the food they eat. Time and again, nutrition ranks high among consumer concerns, along with food safety, convenience, quality, and value. In the United States sales in the "healthy foods" category accounted for $65 billion in 1985, but are expected to reach $98 billion by 1995.

Consumers are asking for specific information about which foods and, in particular, which brands of packaged foods to choose from when they eat or purchase foods. For example the broad guideline to avoid to much fat, saturated fat and cholesterol require specific behaviour implementations that include:

  • Eat more fresh fruits and vegetables, whole grain breads and cereals, potatoes, rice noodles, dried beans, peas, and lentils.
  • Choose low fat dairy products, including skim, 1%, and 2% milk, low-fat cheeses, and low-fat yogurt.
  • Choose lean meats, fish, chicken and turkey.

Very Low Calorie Weight Loss Diets (VLCD)

It is the position of the American Dietetic Association that while VLCD's promote rapid weight loss and may be beneficial for certain individuals, such diets have health risks and should be undertaken only with the supervision of a multidisciplinary health team with monitoring by a physician and nutrition counselling by a registered dietitian.

Side effects that have been associated with VLCD's are cold intolerance, fatigue, light-headedness, nervousness, euphoria, constipation or diarrhoea, dry skin, thinning of hair, anaemia, and menstrual irregularities.

Low body weight and Weight Loss

Excessive concern about weight may cause or lead to such unhealthy behaviors as excessive exercise, self-induced vomiting, and the abuse of laxatives or other medications. These practices may only worsen the concern about weight. Excessive exercise may also affect hormone production, increase the loss of calcium from the bones, and increase the risk of fractures.

Low body weight and rapid unintentional weight loss are highly predictive of mortality, especially in the elderly population. Weight loss is frequently reported in elderly patients.

Acute and chronic diseases are leading causes of involuntary weight loss. Whereas physical disease probably accounts for a majority of cases of involuntary weight loss, psychiatric disorders such as dementia and depression also may result in severe nutritional deficiencies.

Energy requirements decrease because of the lower basal metabolic rate and reduced physical activity. These low energy requirements make it more difficult for the elderly to obtain adequate amounts of required nutrients. Health care professionals must monitor body weight in elderly persons and carefully evaluate any cases of rapid, unintentional weight loss to prevent further deterioration of health status. [Low body weight and weight loss in the aged. JADA 90:1697-1706, 1990]

Weight loss generally consists of both lean body mass and body fat. Contributions of lean body mass and fat to total weight loss is a function of body fat content. Excessive loss of lean body mass will result in skeletal and cardiac muscle wasting and loss of visceral protein. Because lean body mass declines with age, elderly individuals who are at average or slightly above average weight may be better able to tolerate weight loss that occurs with aging or disease than underweight individuals.

It has been well documented that physical disease can lead to weight loss. Disease may limit dietary intake or may alter physiological processes, resulting in decreased nutrient digestion or absorption, increased nutrient excretion, or increased nutrient requirements.

Cancer is the most frequently cited cause of involuntary weight loss, and weight loss may occur during early stages of tumour growth before other symptoms emerge. The anorexia of malignancy has been related to taste alterations; changes in gastrointestinal tract contraction and secretion; metabolic disturbances resulting in changes of circulating glucose, amino acid, fatty acid, or lactic acid levels; changes in hypothalamic function; and weakness leading to decreased motor activity.

In addition to cancer, gastrointestinal disease, uncontrolled diabetes, and cardiovascular disorders such as congestive heart failure, alcohol abuse, pulmonary disease, and infection are major causes of involuntary weight loss. Less common, but still a cause of notable weight loss, is hyperthyroidism.

Specific nutrient deficiencies and low nutrient intakes, which may contribute to weight loss, have been documented in patients with dementia. Deficiencies of folate, thiamin, niacin, riboflavin, and vitamin B12 and electrolyte imbalance may impair cognitive function and mimic dementia.

Some nutrient deficiencies that alter mental status may be present in the elderly population. Altered mental states attributable to nutrient deficiencies and weight loss can be corrected. Several studies have shown that folate deficiency leads to confusion and signs of dementia in elderly individuals, but can be reversed with appropriate supplementation. If confusion and dementia caused by nutrient deficiencies are not diagnosed and corrected, they may lead to even lower nutrient intakes and more severe alterations in mental status.

You must also be aware that health insurance these days incorporate
dietary history when calculating premiums.

    1000 Calorie Diet

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    1200 Calorie Diet

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    1200 Calorie Diet Menu

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