The purpose of this research study is to investigate if acupuncture helps to improve appetite and slow down unintentional weight loss. The participants will be randomly divided into two groups and receive 8 sessions of acupuncture (two groups will receive different acupuncture points) for 8 weeks. During the study period, participants will be asked various questions about appetite, physical functioning, cancer-related symptoms and quality of life to understand changes related to body weight, as well as blood samples. The research team members will collect data regarding changes in appetite, body weight, body composition, and physical functioning.