Assess Extent of Agreement Between Online 24-hr Dietary Recall and Interviewer-administered 24-hr Dietary Recall on the Same Day for 2 Non-consecutive 2 Days 1 wk Apart to Adults and School Age Children

Cross-sectional Study to Assess the Extent of Agreement Between an Online 24-hr Dietary Recall and an Interviewer-administered 24-hr Dietary Recall on the Same Day for 2 Non-consecutive Days 1 wk Apart to Adults and School Age Children in Order to Compare Energy and Nutrient Intakes Derived From the Two Methods and Conduct User Evaluation of the Online Dietary Assessment Tool

Hypothesis: The online 24 hour dietary recall will be comparable to interviewer-administered 24 hour dietary recall considering the limits of agreement in the reporting of energy and macronutrient intake. If the two methods of dietary assessment are comparable (i.e., if greater than 95% of the data plots will lie within the limits of agreement), the online dietary assessment tool could be used in future studies to collect dietary intake data and health data in larger sets of Russian populations, in order to investigate the potential differences in anthropometric risk factors of non-communicable diseases (cancers, diabetes, obesity, hypertension, mortality, etc.) in people with different diet.

Baseline assessments include a demographic questionnaire, including anthropometrics (height, weight), a heath status questionnaire, supplement intake, eating habits, and a food frequency questionnaire, and cardiovascular assessment (blood pressure and heart rate).

Inclusion Criteria:

1. Participants will be male and female.
2. 7-65 years of age.
3. Must be willing and able to record (via online questionnaire) the prior day's food intake according to the protocol.
4. Understanding of the procedures to be undertaken as part of the study.
5. Willingness to participate in research measurement and follow instructions provided by the investigator.
6. Informed, voluntary, written consent to participate in the study.

Exclusion Criteria:

1. Currently have any disease or condition that required chronic therapeutic nutritional treatment (the use of specific nutrition services to treat an illness, injury, or condition).
2. Currently dieting (currently on a diet to lose weight; currently on a diet for health reasons; currently on a diet to gain weight).
3. Have any formal training in nutrition, or had prior experience completing dietary recalls.
4. Participant is unable to complete computer-based dietary questionnaires, through a mental, physical or visual limitation that would preclude him/her from reporting their dietary intake.