A common misconception affecting public perceptions of weight loss is the belief that all calories are equal. Many people think that any calorie deficit will lead to weight loss, regardless of the source. However, the quality of calories matters, as nutrient-dense foods support metabolism and overall health better than empty-calorie options. This leads to misunderstandings about dieting, often resulting in ineffective or unhealthy weight loss strategies. Sustainable weight loss requires a balanced diet and lifestyle changes rather than just calorie counting.