Overweight or Obesity - Causes
Genetic Causes
Obesity tends to run in families, suggesting a genetic link. Families also share common dietary, physical excercise, attitude and lifestyle habits that may also contribute to obesity. Separating these from purely genetic factors is not an easy task.
Overconsumption
Eating too many calories for our enery needs is a major cause of the modern obesity epidemic. According to Dr. Marion Nestle, Professor and Chair of the Department of Nutrition and Food Studies at New York University, US agribusiness now produces 3,800 calories of food a day for every American, 500 calories more than 30 years ago — but at much lower per-calorie costs. Increases in consumption of calorie-dense foods, as evidenced by the growth of fast-food chains and higher soft drink consumption, also point to a higher energy-intake.
Eating Too Many High-Fat or Refined Sugary Foods
The type of food eaten may also play an important role in the rise of obesity. Researchers continue to discover more metabolic and digestive disorders resulting from overconsumption of trans-fats and refined white flour carbohydrates, combined with low fiber intake. These eating patterns are known to interfere with food and energy metabolism in the body, and cause excessive fat storage. Associated health disorders include insulin resistance, type 2 diabetes as well as obesity. Incidence of these "modern" diseases is increasing worldwide.
Reduced Energy Expenditure
People who eat more calories need to burn more calories , otherwise their calorie surplus is stored as fat. For example, if we eat 100 more food calories a day than we burn, we gain about 1 pound in a month. That’s about 10 pounds in a year. Over two decades this energy surplus causes a weight gain of 200 pounds!
Family Influence - A Major Contributory Cause to Obesity
Parental behavioral patterns concerning shopping, cooking, eating and excercise , have an important influence on a child's energy balance and ultimately their weight. Thus family diet and lifestyle are important contributory causes to modern child obesity, especially at a time of rising affluence. Since obese children and adolescents frequently grow up to become obese adults, it's clear that family influence also extends to adult obesity.
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Obesity tends to run in families, suggesting a genetic link. Families also share common dietary, physical excercise, attitude and lifestyle habits that may also contribute to obesity. Separating these from purely genetic factors is not an easy task.
Overconsumption
Eating too many calories for our enery needs is a major cause of the modern obesity epidemic. According to Dr. Marion Nestle, Professor and Chair of the Department of Nutrition and Food Studies at New York University, US agribusiness now produces 3,800 calories of food a day for every American, 500 calories more than 30 years ago — but at much lower per-calorie costs. Increases in consumption of calorie-dense foods, as evidenced by the growth of fast-food chains and higher soft drink consumption, also point to a higher energy-intake.
Eating Too Many High-Fat or Refined Sugary Foods
The type of food eaten may also play an important role in the rise of obesity. Researchers continue to discover more metabolic and digestive disorders resulting from overconsumption of trans-fats and refined white flour carbohydrates, combined with low fiber intake. These eating patterns are known to interfere with food and energy metabolism in the body, and cause excessive fat storage. Associated health disorders include insulin resistance, type 2 diabetes as well as obesity. Incidence of these "modern" diseases is increasing worldwide.
Reduced Energy Expenditure
People who eat more calories need to burn more calories , otherwise their calorie surplus is stored as fat. For example, if we eat 100 more food calories a day than we burn, we gain about 1 pound in a month. That’s about 10 pounds in a year. Over two decades this energy surplus causes a weight gain of 200 pounds!
Family Influence - A Major Contributory Cause to Obesity
Parental behavioral patterns concerning shopping, cooking, eating and excercise , have an important influence on a child's energy balance and ultimately their weight. Thus family diet and lifestyle are important contributory causes to modern child obesity, especially at a time of rising affluence. Since obese children and adolescents frequently grow up to become obese adults, it's clear that family influence also extends to adult obesity.
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posted by Dammy at
3:40 AM
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