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Medical FAQ’s: General Nutritions
There are two reasons: If it is some time since you last saw your doctor, you should have a check-up before starting a weight loss programme. Based on the results of this check-up and on your medical history, your GP can advise you on a suitable weight loss regimen. Obesity can be a contributing factor in some medical conditions ? for example high blood pressure (hypertension), maturity onset diabetes (diabetes Type II controlled by diet or tablets), gallbladder problems and varicose veins. It is as well, therefore, to consult your doctor before following a weight loss programme, so that your progress can be monitored and so that the dosage of your medication can be adjusted if necessary.
Shape, weight and where we carry body fat is influenced by our genes. Of course, exercise (or lack of it), together with what and how much we eat, does have an influence.
Food energy is traditionally measured in calories. One calorie is the amount of energy needed to raise the temperature of one gram of water by one degree centigrade. As the calorie is an extremely small unit, when referring to measurements of the energy value of food, the kilocalorie ? equivalent to 1,000 kcal ? is often used instead. Kilocalories are sometimes called Calories, with a capital C. In nutrition the larger units ? kilocalories and megajoules – are used. Under the international system of units the kilocalorie has been replaced by the joule and food labels now quote energy values in first kilojoules and then kilocalories. A kilojoule = 0.238 kcal. eg. The energy value of a Chocolate Velvet Tetra Brik is 580KJ/137kcal.