None listed
Conditions
Interventions
Intervention1: Nil: Nil
Intervention2: Nil: Nil
Intervention3: Nil: Nil
Control Intervention1: NiL: Nil
Sponsors
IIndian Council of Medical Research National Institute of Nutrition
Eligibility
Inclusion criteria
Inclusion criteria: Age: 19-65 years Sex: Both male and female 1. Currently employed at ICMR-NIN (scientific, technical, or administrative category) 2. Owns a compatible smartphone (Android or iOS) capable of running study applications 3. Regularly consumes Indian meals (minimum 5 of 7 days per week) 4. Willing and available to record all food and beverage intake for 7 consecutive days 5. Willing to attend 3 interviewer-administered 24-hour dietary recall sessions at ICMR-NIN 6. Provides written informed consent in preferred language (English, Hindi, or Telugu) 7. Not previously enrolled in the laboratory phase of this validation study
Exclusion criteria
Exclusion criteria: 1. Severe or medically prescribed dietary restrictions 2. Current pregnancy or lactation 3. Diagnosed eating disorder 4. Visual impairment or physical limitation affecting smartphone or app use 5. Currently enrolled in a concurrent dietary intervention study or clinical trial 6. Planned travel or disruption preventing uninterrupted 7-day participation 7. Professional qualification or current training in nutrition, dietetics, or food science (to prevent reactivity bias)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Agreement between AI-estimated mean daily energy intake (kcal/day, 7-day average) and mean energy intake from three 24-hour dietary recallsTimepoint: DAY 7 | — |
Secondary
| Measure | Time frame |
|---|---|
| Agreement between AI-estimated and recall-derived macronutrient intake protein, carbohydrate, and total fat (g/day)Timepoint: DAY 7;Protocol completion rate: proportion of enrolled participants completing all 7 recording days and all 3 dietary recalls.Timepoint: DAY 8;User acceptability,Time burden, Technical issues,Qualitative feedback,Subgroup validityTimepoint: 8 DAYS | — |
Countries
India
Contacts
Public ContactShabna A
Indian Council of Medical Research, ICMR-NIN
Outcome results
None listed