Diet control and weight loss
What do we eat
‘Eat to live’ or ‘live to eat’. This phrase is self-explanatory—some people eat to replenish energy, whereas some eat just because they love to eat. In general, a dichotomy of physiological and psychological drive influences the eating habits. The process of starting, continuing and stopping a meal is determined by physiological processes in conjunction with psychosociological influence.
The physiological changes revolve around the
- Gastrointestinal tract
- Absorption and
- Metabolism and central nervous system.
While the psychosocial influences are perceived under the sections:
- Perceptual cues
- Cognitive set and
- Emotional set
Mechanism of Weight Regulation
Body weight is regulated both by expenditure and intake of food. Variations in energy expenditure antagonize the effects of changes in food intake on weight. Long-term fasting results in a decrease in energy expenditure. Energy expenditure is continuous and intake is organized discontinuously, a set of predetermined circadian and circannual rhythms are thought to influence the weight regulation.
Adipocytes are the energy storage house of the body and they modulate the hormonal and metabolic signal of information related to storage and expenditure of energy. The food intake determines the lipolytic effect; greater the spontaneous lipolysis, the greater the antilipolytic responsiveness and such an antilipolytic effect obviously results in energy sparing and, eventually, a defense against changes in weight.
The prevailing conditions of energy expenditure and availability of food determines the course of weight regulation, and the chances of becoming obese are driven by the genetic sensitivity to pleasure.
Who Gets Fat?
Some get fat, some do not get fat. This fact forms the basis for identifying individuals who are prone to become obese.
The prevailing characteristics, which can help in identifying those individuals who are prone to become obese can be visualized as
- Socioeconomic status
- Level of education
- Family history of obesity
- Dietary habits and
- Smoking and drinking habits.
Other features include the physical attributes such as stature, body frame size and muscle mass. Among women, parity and also habitual use of oral steroid contraceptives are a matter of consideration for becoming fat. At times, medications also determine the course of weight gain or loss.
Healthy Way to Loose Weight: Diet Control?
The body component of a typical normal adult individual weighing 70 kg is composed of approximately, water 42 kg, protein 12 kg, fat 12 kg and glycogen 0.5 kg (depending of how long it is since his last meal and the nature of that meal), and the remaining 3.4 kg is mostly bone mineral.
Written by: Healthplus24 team
Date last updated: April 07, 2013