Experiential education is being increasingly needed to enhance students’ critical thinking and problem-solving abilities across disciplines. Recent studies reveal the increased prevalence of non-credentialed nutrition information (or nutrition misinformation), making it difficult for the public to differentiate between facts and fads, which necessitates the delivery of targeted messages of credential evidence-based nutritional science to the community. We developed a pedagogical approach that integrated Kolb’s experiential leaning theory and citizen science practice through student-led community outreach projects concerning nutritional sciences. The community outreach projects consisted of project outline and planning (Part 1), scientific inquiry (Part 2), presenting science (Part 3), and project summarization (Part 4), which engaged students in activities aligned to “reflective observation”, “abstract conceptualization”, “active experimentation”, and “concrete experience”. The community outreach projects bridged the classroom and community via digital communications and fostered intensive instructor-student-community collaborations in communicating nutritional science, which enhanced students’ critical thinking and problem-solving abilities as well as soft skills (e.g., teamwork, communication skills, time-management skills, adaptability, flexibility, and resilience). The outreach projects also helped the community clarify misconceptions or misinformation and deepen their understanding of nutrition topics, stimulating the community’s interest and curiosity that resulted in further learning and education. Taken together, this pedagogical approach effectively promoted experiential learning and citizen science. Future studies of larger population will be of significance to validate or generalize the pedagogical approach across STEM disciplines.