Validation of dietary intake assessment methods in healthy older adults

Measurement of diet intake using 3-day weighed food record, Cancer Council Food Frequency Questionnaire and 24-hour recall methods. All participants will be asked to complete all three methods of estimating dietary intake. Duration of observation differs for each method: 3-day weighed food record will be conducted once. Participants choose two weekdays and one weekend-day within a two-week period. They will be provided with a set of scales and three separate record sheets to record all food and beverages consumed on these days. Instructions and a demonstration will be conducted during the home-visit. A prepaid return envelope is provided in order to return the scales and food record sheets. Cancer Council Food Frequency Questionnaire will be conducted once during the home visit. Participants are asked to estimate the frequency of consumption of various foods over the previous 12-months. 24-hour recall will be conducted twice; the first time during the home-visit, and then again two weeks later. It involves participants recalling all foods and drinks consumed in the previous complete 24 hour period. To clarify; The home visit includes; initial 24-h recall, food frequency questionnaire and instructions for weighed food record. Then participants are given two weeks to complete and return a 3-day weighed food record Finally, two weeks after the initial home visit a second 24-hour recall will be conducted via telephone.