The use of "fruit blend (proprietary)" to support the Spleen body system is primarily grounded in traditional medicine, particularly in the context of Traditional Chinese Medicine (TCM). In TCM, the Spleen is seen as central to digestion and the transformation and transportation of nutrients. Various fruits—such as Chinese dates (jujube), goji berries, and citrus peels—are historically included in herbal formulations to "tonify" the Spleen, promote digestive health, and support energy levels. These ingredients are believed to provide natural sweetness, which is thought in TCM theory to harmonize and strengthen the Spleen.

However, while the traditional use of these fruits and fruit blends is well-documented, there is limited direct scientific evidence supporting the ability of generic or proprietary fruit blends to specifically and measurably support the physiological function of the human spleen as understood in Western medicine. Some individual fruits contain vitamins, antioxidants, and fibers that may contribute to overall digestive health, but attributing these effects specifically to Spleen support is a traditional rather than scientifically established practice. Thus, the traditional rationale is clear, but the scientific evidence for targeted Spleen support from a proprietary fruit blend is limited.