Final answer:
The statement demonstrating denial is the individual claiming no need for dietary change, reflecting a refusal to acknowledge a potentially necessary change in behavior.
Step-by-step explanation:
The statement that is an example of denial is 'I don't need to change my diet because I'm fine.' This response exemplifies a refusal to acknowledge the potential need for changing our discrepant behavior, such as improving dietary habits, despite evidence or advice to the contrary. It is a cognitive strategy for dealing with information that might provoke anxiety or force change, similar to other rationalizations like minimizing the health risks of smoking by suggesting filtered cigarettes reduce such risks. By denying the necessity of dietary change, the individual can avoid confronting the issue and maintains the status quo.