Research suggests that Annona muricata (graviola/soursop) may have sedative and sleep-promoting properties, with animal studies and preliminary investigations pointing to CNS depressant effects, GABAergic involvement, and the presence of alkaloids that appear to act as 5-HT1A agonists — a receptor pathway associated with relaxation and sleep regulation. Studies indicate that this traditional use is not without ethnomedicinal grounding, as documentation from an outpatient population recorded soursop's use for sedation and sleep disorders, lending some real-world context to the laboratory findings. However, the existing evidence base is composed almost entirely of animal studies, preliminary investigations, and one review focused on antioxidant properties, with no randomized controlled trials or rigorous human clinical trials specifically examining sleep quality outcomes. The overall direction of the available research is supportive of a plausible sleep-related effect, but meaningful conclusions about efficacy or safety in humans cannot be drawn until well-designed human studies are conducted.
Citations from PubMed and preprint sources. Match score (0-100) reflects automated search ranking, not clinical appraisal.
| Title | Type | Year | Direction | Match |
|---|---|---|---|---|
| Phytochemical Analysis and Central Effects of Annona Muricata Linnaeus: Possi... | Other | 2018 | Supports | 88 |
| A preliminary study of the sedative effects of Annona muricata (sour sop). | Other | 1979 | Supports | 82 |
| Isoquinoline derivatives isolated from the fruit of Annona muricata as 5-HTer... | Other | 1997 | Supports | 72 |
| Use of medicinal plants by ambulatory patients in Puerto Rico. | Other | 1984 | Supports | 65 |
| The Antioxidant Potential of Graviola and Its Potential Medicinal Application. | Review | 2023 | Supports | 60 |