Nowadays, when alternative facts are circulating, effective scientific communication is indispensable to inform the human population about risks to their health. Microplastics are a present problem not only for the environment but also for human health, and people's daily plastic consumption contributes to this problem. Based on findings, environmental risk perception and knowledge have a significant impact on environmental concerns and these concerns influence behavioral intention and sustainable consumption behavior. This study examines to which extent an immediate intervention with clear and direct messages about the risks of plastics and, especially microplastics, to the environment and human health could increase people's willingness to reduce their plastic consumption. For this purpose, a survey was conducted among students enrolled at a university, to assess their willingness to reduce plastic usage and their knowledge about the risks of plastic pollution on human health before and after an informative intervention. The statistical analysis of this study showed that introducing students to the risks of plastic pollution to human health led to a greater willingness to reduce plastic consumption among them. The results of this study illustrate the importance of awareness and education when it comes to the risks of plastic consumption (e.g., microplastics and toxins) for human health. This study has been conducted with the students at the Hamburg University of Applied Sciences, in Hamburg, Germany. Although the study was conducted as limited short research where subsequential and more extensive research is needed, it nevertheless provides some interesting results to be considered.