Development and validation of the Chrononutrition Profile - Diary.

Area of Science:

• Nutrition science
• Chronobiology
• Public health

Background:

• Circadian timing of food intake (chrononutrition) impacts health markers like body weight and insulin sensitivity.
• Existing methods lack valid assessments of day-to-day, within-person chrononutrition patterns.

Purpose of the Study:

• To develop and validate the Chrononutrition Profile-Diary (CP-D) for assessing daily eating patterns.
• To evaluate the CP-D's ability to capture key chrononutrition components relevant to health.

Main Methods:

• Development of the Chrononutrition Profile-Diary (CP-D).
• The CP-D assesses six key chrononutrition components: breakfast skipping, largest meal timing, evening eating, eating latency, night eating, and eating window.
• Initial validity testing using convergent validity with the Automated Self-Administered 24-hour dietary assessment tool (ASA24).

Main Results:

• The Chrononutrition Profile-Diary (CP-D) was successfully developed.
• Preliminary evidence of convergent validity was found between the CP-D and the ASA24.
• The CP-D reliably assesses key daily chrononutrition behaviors.

Conclusions:

• The CP-D is a valid and reliable tool for assessing day-to-day chrononutrition patterns.
• This measure can be used independently or with other dietary tools for comprehensive eating behavior assessment.
• The CP-D is suitable for use by researchers and healthcare professionals to evaluate patient and participant chrononutrition.