2.6. Four-Day Food Diary
Dietary intake was assessed using a 4-day food diary, which involved participants recording everything they ate and drank over four consecutive days (including 1 day at the weekend). Participants were asked to estimate food and beverage portion sizes using household measures or through food and beverage labels. The researcher reviewed the diary for omissions and clarification at each visit (portion size, etc.). A nutrition analysis software programme called Nutritics (Research Edition, v5.09*, Dublin, Nutritics, 2019, 