Table 1 Dietary survey measures used in UKHLS
Measure | Question | Possible answers | |
|---|---|---|---|
Adult questionnaire | Fruit intake frequency | “Including tinned, frozen, dried and fresh fruit, on how many days in a usual week do you eat fruit?” | Never 1—3 Days 4—6 Days Every day |
Fruit amount | “On the days when you eat fruit, how many portions (e.g. an apple, an orange, some grapes) do you eat?” | Whole numbers | |
Vegetable intake frequency | “Including tinned, frozen and fresh vegetables, on how many days in a usual week do you eat vegetables? Do not include potatoes, crisps or chips.” | Never 1—3 Days 4—6 Days Every day | |
Vegetable amount | “On the days when you eat vegetables, how many portions (i.e. 3 heaped tablespoons) do you eat? Please do not include potatoes.” | Whole numbers | |
Youth questionnaire | Fruit and vegetable daily intake | “How many portions of fresh fruit or vegetables do you eat on a typical day? One portion is one piece of fruit or one serving of a vegetable or salad item” | 5 or more portions 3–4 portions 1–2 portions None |