While waiting for a flight recently at Reagan National Airport, Katherine Tallmadge found herself checking out pre-packaged nut mixes, which are loaded with healthy fats but can contain as much as 1,200 calories per bag.

Messenger sends back 1200 photos of previously unseen areas of Mercury, including the Caloris Basin.

Obesity is the bane of diabetes. These two conditions occurring in conjunction result in a complicated medical condition, which in turn can have serious repercussions. So when you are diabetic and also obese, counting your calories is a must.

Jogging is a great way to lose weight but it is a strenuous activity. It is such a strenuous activity that most people lose between 600 and 1,200 calories per hour. Even people in very good physical condition have to gradually build up a jogging routine. Unlike many other exercises jogging uses completely different muscles in new ways.

Most people have no idea how many calories they actually need. In order to figure out if your weight is healthy you need to calculate your body mass index (BMI). Relying on a 1,200-calories diet to lose weight is outdated. A better way to determing your optimum calorite intake is by finding your resting metabolic rate (RMR), which is the amount of

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 (1 kcal or 1,000 calories) 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.