Self-monitoring of diet and exercise is best suited for which stage of change?

• A. Contemplation
• B. Action
• C. Maintenance
• D. Preparation

Answer: (C)

Self-monitoring works best when the change has become a regular part of daily life and the goal shifts to sustaining it over the long term. In the maintenance stage, individuals have already adopted the new diet or exercise pattern and focus on preventing relapse and keeping the behavior from slipping back. Regularly tracking intake and activity provides continuous feedback, helps detect emerging risk patterns, and reinforces ongoing commitment, making it easier to maintain the new routine even when motivation dips or life gets busy. In earlier stages, the emphasis is more on deciding to change and starting the new behavior, whereas the sustained, ongoing vigilance of self-monitoring is most critical once the habit is established.