Can't resist the food crave?

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I know I shouldn't have been eating chocolates, burgers and fries, potato chips, as they tend to cause food allergy symptoms such as undesirable production of mucus, or lethargy and sore throat, and above all, they generally do not have good nutrition. However at times I cannot suppress my crave for these food and go for them, without thinking of the consequences and come to regret later. Do you have some food that you know you should not eat but still could not resist the crave. Do you think about the consequences? Or what is your solution to avoid them? Please share some advice, many thanks!