Plant- and animal-protein diets in relation to sociodemographic drivers, quality, and cost: findings from the Seattle Obesity Study

Year Published: 2019

Aggarwal A, Drewnowski A

"The aim of this study was to characterize the sociodemographic drivers of plant-based protein diet consumption, and to study these in relation to diet quality and cost."

Key Findings: High intakes of plant-based diets were associated with significantly higher diet quality, with minimal impact on higher diet costs. Authors conclude that "plant-based protein diets may be a cost-effective way to improve diet quality at all levels of income."