For anybody who is losing weight aggressively, there is always a problem lingering in his/her mind. Could something go wrong if the weight loss goes too fast?
This is a legitimate question. Besides exercise injuries and minor side effects of low calorie diet such as diarrhea and heart burn, there is another complication which is less common but also real. Studies have consistently found that those who lose weight rapidly using extreme low calorie diet may be in a higher risk of developing gallbladder stones. In a pooled analysis of several small weight loss programs, the authors found that weight loss is related to the risk of developing gallbladder stones in an exponential curve fashion with the threshold at 1.5 kg per week (3.3 pounds per week). The incident rate is 5 per 1,000 at 1.5 kg weight loss per week, while it is about 1.7 per 1,000 at 2 kg (4.4 pounds) per week, a triple increase of risk. It seems I am lucky that I hadn’t had symptomatic gallbladder stones during my aggressive weight loss. Thank goodness!
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