The ongoing conflict between the economic imperative of stimulating consumption as part of the proliferation of neoliberal ideals of consumer supremacy and growing concern to increase environmental protection presents an opportunity to focus on consumption with respect to ethical behavior. Ethical concerns regarding purchasing and consumption behavior are addressed here in relation to the adoption of principles associated with temperance as applied to self-restraint in food purchase and consumption. The paper outlines theological links to the concept of temperance as applied (...) to environmental and health concerns. Employing a virtue ethics perspective, it examines people’s proactive attitudes that value the environment by adopting waste reduction behaviors. Within the context of normative ethics, it is asked: “Is temperance able to fulfill the role of a lever in consumers’ hands and thereby contribute to minimizing negative environmental impacts associated with food waste?” The research bears witness to the role that consumer behavior may play in promotion and application of temperance in daily life. Study results from a survey conducted in Romania extend the scant information on people’s food waste behavior in relation to religion, underscoring the relationship between religion, temperance-oriented behavior and environmental concerns. (shrink)