I am planning to conduct a study aim on household expenditure on food security, which focus on how a household spend they monthly expenditure on food. either the food they consumed secured or not. also, the study will also relate to the chronic illnesses whereby, I will conduct an interview among household groups despite their household income. the question will involve on the information about how they spend on food, type of food, and do the family member have any illness/ chronic illness such as hypertension, diabetes and so on.
do dietary diversity scale suitable for this type of study or not?