Provide fat reduction guidance to users through the Internet or at home. Mobile fat reducer is a profession that provides users with personalized weight loss programs and guidance through the Internet or home visits. They usually provide customized diet plans, exercise suggestions and psychological support according to users' physical condition, living habits and needs to help users achieve their weight loss goals. Mobile dieters keep in touch with users through online consultation, live lectures, social media interaction and family one-on-one to provide them with continuous support and encouragement.