The effectiveness of a diet history interview may be limited because it _____.

The effectiveness of a diet history interview is indeed limited because it relies on participant memory. When conducting a diet history interview, individuals are asked to recall their food intake over a specific period, which may be challenging. Memory can be influenced by various factors such as forgetfulness, inaccuracies in self-reporting due to bias (e.g., underreporting – which is common when individuals are aware of healthy eating habits), and the ability to accurately remember portion sizes or preparation methods. This reliance on memory makes it difficult to obtain precise and reliable dietary information, ultimately affecting the quality of dietary assessments and the conclusions drawn from them.

In contrast, while literacy, time consumption, and cultural sensitivity are important considerations in the context of diet history interviews, they do not address the core issue of how effectively participants can recall and report their dietary intake, which is critical for the accuracy of the interview process.