This study investigated the impact of social media-mediated health information on the health-related consumer behavior and outcomes of residents in Mandaluyong City, Philippines, using a descriptive correlational design. The research aimed to understand how the perceived credibility of information sources, personal health beliefs, attitudes, and social influences shape consumer health behaviors. Additionally, it explored the health outcomes associated with social media health information, categorized into positive health changes, mixed mental health impacts, and negative health risks. Employing a quantitative approach, data were gathered through surveys and analyzed using statistical tools such as weighted mean, standard deviation, and Pearson r-correlation coefficient. The study addressed three main objectives: analyzing the influence of social media-mediated health information on health-related consumer behavior, examining the health outcomes from consuming health information via social media, and determining the significant relationship between social media health information and health outcomes. The findings revealed that perceived credibility, personal health beliefs, and social influence significantly affected health-related consumer behavior. Participants who trusted credible sources and adopted proactive health attitudes reported positive health changes, whereas misinformation and negative social influences contributed to mixed mental health impacts and negative health risks. Furthermore, a significant relationship was established between social media-mediated health information and health outcomes, highlighting the critical role of social media in shaping health behaviors and outcomes among residents of Mandaluyong City. These results underscore the need for educational initiatives to enhance health literacy and the importance of reliable health information sources in mitigating the risks associated with social media engagement.