The purpose of this study is to analyze how perceptions and beliefs about health and environment influence purchasing and consumption decisions. The labeling of organic products and purchasing and consumption decisions were examined through a systematic literature review, analyzing documents on the perception of organic food, decision-making and marketing of organic products as healthy options and their impact on consumers. Various methods, such as reviews, case studies, surveys, controlled experiments, and statistical methods, were used to analyze consumer perceptions and the labeling of food products found in the literature. One of the main findings is that labels such as “organic” and “healthy” strongly influence purchasing and consumption decisions. The halo effect influences food purchasing choices, emphasizing how clear and precise labeling helps make informed decisions about food and prevents issues such as obesity, promoting environmentally sustainable production. It is suggested that the promotion of organic products as healthy and the halo effect impact consumption decisions in a disease prevention context. Food producers and retailers, acting ethically and transparently, benefit from marketing the perceived healthiness of their products.