Weight loss of more than 5% (five percent) of body weight without an intention in less than one year time can be called unintentional weight loss and it can be a signal to a serious underlying pathology and underlying systemic disease. It is advisable for general physicians to investigate to find out the cause of weight loss of more than 5% in 6-12 months period. Weight loss should not be ignored if it is not intentional, as it may be due to serious medical problem and early diagnosis of the underlying disease can be managed better if diagnosed in time and as early as possible.
Despite significant variation in the quantity of food and calorie intake as well as highly variable physical activity or consumption of calories, normal human beings generally able to maintain bodyweight surprisingly without much fluctuation.
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