


Archive for May 8th, 2009
There is no way at present to distinguish between individuals who will or will not develop an eating disorder subsequent to dieting. There is also no way to identify who will or will not be damaged by repeated weight cycling. It is uncertain whether some people will need constant support and monitoring to maintain fat loss. It may be that a different approach needs to be taken for people with a food dependence from the traditional approaches used in behavioural and self-management practice.
A further model for eating disorders has been proposed with reference to obesity and non-purging bulimia, which suggests that repeated cycles of dieting and regaining weight lead to food dependence.” Dependence is defined as ‘the failure to stop using a substance that is deleterious to health and where use results in short term mood alteration’. In this model, food (specifically those foods which are reserved for bingeing episodes) becomes a psychoactive substance. In common with other psychoactive addictions it has the following characteristics:
• food is used in larger amounts, or for longer periods than the person intended
• there is a persistent desire or effort to cut down or control intakes
• there are ‘withdrawal’ symptoms—cravings, anxiety, tension, depression—when the food is not available.
Obese and bulimic clients frequently report bingeing in response to stress, frustration, rejection or other negative emotional states, and it seems likely that both uncontrolled eating and the kinds of food used (high carbohydrate/fat) act synergistically to lower the internal arousal state. Few of these clients are able to activate behavioural self-management techniques at these times.
This presents the fat loss counsellor with a major dilemma; on the one hand is the desire to encourage healthy weight loss, but on the other is the concern about encouraging restrictive eating disorders. Unless the counsellor turns away a client, leaving them at the mercy of someone less scrupulous, they have a responsibility to be helpful, and above all, to do no harm. The following are some guidelines for counsellors, based on this ‘do-no-harm’ principle:
Myth-information. Tai Chi, the ancient Chinese art of movement, is a form of relaxation which may, indirectly, have an effect on nervous eating and thereby improve body fat levels. The physical component of Tai Chi alone, however, is not sufficient to create a significant energy deficit.
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Carbohydrate is a part of food. Starch is a carbohydrate, so too are sugars and certain types of fibre. Starches are nature’s reserves created by energy from the sun, carbon dioxide and water. The building block of starch is glucose, a single sugar.
The simplest form of carbohydrate is a single sugar molecule. Chemically, this sugar molecule is known as a monosaccharide (mono meaning one, saccharide meaning sweet). Glucose is a single sugar molecule which occurs in foods and is the most common source of fuel for the cells of the human body.
If two sugar molecules are joined together, the result is a di-saccharide (di meaning two). Sucrose, or common table sugar, is a disaccharide.
Starches are long chains of sugar molecules joined together like the beads in a string of pearls. They are called polysaccharides (poly meaning many). Starches are not sweet to taste.
Dietary fibres also have a complex structure, containing many different sorts of sugar molecules. They are different from starches and sugars in that they are not broken down by human digestive enzymes. Fibre reaches the large intestine without change. Once there, bacteria begin to ferment and break down the fibres.
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