Reply - Letter to the editor: Clarifying constraints and realities in human metabolic tracing studies

Key Points

• Clarify the constraints and challenges faced in human metabolic tracing studies.
• Discussion of existing literature on metabolic tracing studies.
• Analysis of common constraints and limitations in methodologies.
• Recommendations for future research directions.
• Identification of key constraints affecting metabolic tracing accuracy.
• Discussion on how these limitations impact study findings and interpretations.
• Suggestions for improving study designs to enhance reliability.