Dieting is an issue because it can lead to unhealthy changes in body composition, hormonal changes, reduced bone density, menstrual disturbances, high blood pressure, tooth decay, and lower resting energy expenditure. These are just examples of what can happen overtime if you keep dieting. On the short term, dieting could lead to poor nutrition and contribute to stress.
The law of conservation of energy is a law of science that states that energy cannot be created or destroyed, but only changed from one form into another or transferred from one object to another. Hope it helps
