What are the most effective ways to integrate Zwift data with nutrition planning, particularly for cyclists who are trying to optimize their fueling strategies for specific workouts or events? Are there any specific metrics or data points from Zwift that are most useful for informing nutrition decisions, such as power output, heart rate, or cadence? How can cyclists use Zwift data to identify patterns or trends in their energy expenditure and adjust their nutrition accordingly? Are there any tools or software that can help streamline the process of integrating Zwift data with nutrition planning, or is it mostly a matter of manual tracking and analysis? What are the key considerations for using Zwift data to inform nutrition decisions, such as accounting for individual variability in metabolism or adjusting for different types of workouts? How can cyclists balance the need for precise nutrition planning with the complexity and variability of real-world riding conditions, where factors like terrain, weather, and traffic can all impact energy expenditure? Are there any best practices for using Zwift data to inform nutrition decisions during periods of intense training or competition, when every calorie counts?