Socializing with my friends usually involve food. Though we usually do something active (usually bowling) prior to dinner, the intensity of our activity is so low, it does not cancel out the 1,500 – 2,000 calories meal. These are the strategies I am going to try to decrease the amount I am eating when I am with friends.

Many Americans view a healthy lifestyle as something difficult to attain--and something that's not much fun. Traditional diets have taught us that to lose weight, we must count calories, keep track of everything we eat, and deprive ourselves by limiting the amount--and kinds--of foods we eat.

Pictures of food portioned out to exactly 200 calorie amounts.

Metabolism is a complex set of biochemical reactions by which food is converted into energy, and by which our body needs to function. Metabolic rate, to put it very simply, is the amount of energy (also known as calories), our organization needs to make some basic functions, even when you sleep. This includes maintaining heart, brain, liver, ...

Needs to burn more calories than we consume. There is no exercise or diet plan useful by the time we do not limit out calorie intake. Eat healthy food with lesser amount of calories and no sweet at all

Food energy is the amount of energy in food that is available through digestion. The values for food energy are expressed in kilocalories (kcal) and kilojoules (kJ).One food calorie is the amount of digestively available food energy (heat) that will raise the temperature of one kilogram of water one degree Celsius. Some advocate the convention of the capitalizing the C in these so that one Calorie is equal to 1000 lowercase calories, but that convention is not generally followed. The large Calorie is sometimes abbreviated kcal, to indicate clearly that is 1000 times as large as the small calorie formerly common in chemistry and physics usage. Consequently, the prefix kilo- is not used with large Calories. Food calories are also more specifically called kilocalories on the basis of the small calorie usage. This term, which makes it clear that large calories are intended, is widely used by professional nutritionists when speaking in terms of calories rather than joules, but the term kilocalorie for the large calorie is less often used by laypersons.The International System of Units unit kilojoule (kJ) is becoming more common. In some countries (Australia, for example) only the kilojoule is normally used. Some types of food contain more food energy per gram than others: fats and ethanol have particularly high values for food energy density: 9 and 7 kcal/g, respectively. Sugars and proteins have about 4 kcal/g. One (small) calorie is approximately equal to 4.1868 joules. One kcal is 4.1868 kJ.Each food item has a specific metabolizable energy intake (MEI). For a normal human this value is obtained by multiplying the number of kilocalories or kilojoules contained in a food item by 85%, which is the amount of energy actually obtained by a human after the digestive processes have been completed.