What are the most common weight loss pitfalls that cyclists fall into when trying to shed pounds, and how can they avoid the trap of sacrificing performance for the sake of a lower number on the scale? Is it really necessary to cut out entire food groups in order to lose weight, or can a balanced diet that includes complex carbs and healthy fats actually support weight loss and improved cycling performance? What role does nutrition play in weight loss for cyclists, and how can riders avoid the temptation to over-rely on trendy diets or quick fixes that may not be sustainable in the long term?