Statistical relationships called expenditure elasticities are detailed for 24 major food groups and 77 subgroups. They allow researchers and policymakers to anticipate what can happen to family expenditures for these foods when income and household size change. The elasticities generally confirm...

A comprehensive model is developed to measure the extent that nutrition knowledge and diet-health awareness, among other factors, influence an individual's Healthy Eating Index (HEI), USDA's measure of overall diet quality. This is the first study that rigorously attempts to examine variation in...