Weight gain can be due to many different reasons. It is not only due to over eating or lack of exercise. Sometimes it can be due to hormonal imbalance, side effects of some pills, or some disorder.
Whether it’s hormonal, a medication side effect, or something else, one need to consult a proper dietician or doctor to know the exact reason.
Here is a list of few small things which can lead to weight gain if proper care not taken-
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