In Basiotis et al.'s year-long food intake study, which food component required the largest number of days of food intake records to yield a "true" average intake?

Question

In Basiotis et al.'s year-long food intake study, which food component required the largest number of days of food intake records to yield a "true" average intake?​

Quizplus · Accepted Answer

Vitamin A required the largest number of days of food intake records to yield a "true" average intake because its consumption can vary significantly from day to day, making it harder to capture an accurate average intake with fewer days of records.

In Basiotis Et Al