# Annona muricata **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/annona-muricata **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-19 **Evidence Score:** 6 / 10 **Category:** Amazonian **Also Known As:** Annona muricata, Graviola, Soursop, Guanábana, Corossol, Brazilian paw paw, Custard apple, Prickly custard apple ## Overview Soursop (Annona muricata) contains acetogenins, bioactive compounds that demonstrate selective cytotoxicity against cancer cells by inhibiting [mitochondrial](/ingredients/condition/energy) complex I. These compounds show particular promise in preclinical studies for colorectal and breast cancer applications. ## Health Benefits • Colorectal cancer support: In a randomized controlled trial (n=28), leaf extract showed higher ex vivo serum cytotoxicity against colorectal cancer cell lines after 8 weeks (moderate evidence, PMID: 28582808) • Potential anti-cancer activity: Preclinical studies demonstrate cytotoxicity against breast, colon, lung, and prostate cancer cell lines with ED50 values <1 µg/mL (preliminary evidence) • Synergistic effects with chemotherapy: In vitro studies show enhanced anticancer effects when combined with cisplatin in breast cancer cells (preliminary evidence) • Low toxicity to healthy cells: IC50 >962 µg/mL in normal endothelial and fibrosarcoma cells suggests selective cytotoxicity (preliminary evidence) • Traditional diabetes management: Historical use for diabetes treatment, though clinical evidence is lacking (traditional evidence only) ## Mechanism of Action Soursop's primary bioactive compounds, annonaceous acetogenins including annonacin and muricin, selectively inhibit [mitochondrial](/ingredients/condition/energy) NADH-ubiquinone oxidoreductase (complex I) in cancer cells. This disruption of cellular respiration leads to ATP depletion and subsequent apoptosis in malignant cells while sparing healthy tissue. The acetogenins also modulate [reactive oxygen species](/ingredients/condition/antioxidant) production and may influence p53-mediated cell cycle arrest pathways. ## Clinical Summary A randomized controlled trial with 28 participants demonstrated that soursop leaf extract increased ex vivo serum cytotoxicity against colorectal cancer cell lines after 8 weeks of supplementation. Preclinical studies show cytotoxic activity against breast cancer cells, though human clinical data remains limited. The current evidence is primarily based on in vitro studies and small human trials, requiring larger clinical investigations to establish therapeutic efficacy. Most research focuses on leaf extracts rather than fruit consumption. ## Nutritional Profile Annona muricata (soursop) fruit pulp composition per 100g fresh weight: Carbohydrates 16.8g (primary macronutrient), dietary fiber 3.3g (soluble and insoluble fractions), protein 1.0g, fat 0.3g, water 81.2g, calories ~66 kcal. Key micronutrients: Vitamin C 20.6mg (23% DV), folate 14µg, thiamine (B1) 0.07mg, riboflavin (B2) 0.05mg, niacin (B3) 0.9mg, pyridoxine (B6) 0.059mg. Minerals: potassium 278mg (dominant mineral), magnesium 21mg, phosphorus 27mg, calcium 14mg, sodium 14mg, iron 0.6mg, zinc 0.1mg. Primary bioactive compounds: Acetogenins (annonaceous acetogenins) including annonacin (~0.001–15mg/100g in pulp, higher in seeds/leaves), annonacinone, bullatacin, squamocin — these are the principal cytotoxic compounds with [mitochondrial](/ingredients/condition/energy) complex I inhibition activity. Alkaloids: reticuline, coreximine, anomurine present predominantly in leaves and bark. Phenolic compounds: quercetin, kaempferol, isoquercitrin, chlorogenic acid (leaves contain ~18.5mg GAE/g dry weight total phenolics). Terpenes: beta-caryophyllene, p-cymene in leaf extracts. Bioavailability notes: Acetogenin bioavailability is poorly characterized in humans; lipophilic nature suggests fat-enhanced absorption. Vitamin C bioavailability is moderate (~70%) consistent with other fruit sources. Seed and leaf concentrations of acetogenins are 10–100x higher than pulp; annonacin in seeds reaches ~3.8mg/100g fresh weight. Neurotoxicity risk noted with high acetogenin exposure, particularly annonacin, linked to atypical parkinsonism in epidemiological studies from endemic regions. ## Dosage & Preparation Clinical dosages are poorly defined. The sole RCT used daily oral leaf extract for 8 weeks (specific mg not detailed). In vitro studies used 125-250 µg/mL aqueous leaf infusions and 15-240 µg/mL methanol leaf extracts. No standardization for acetogenin content has been established. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions Soursop may cause neurological side effects with chronic high-dose consumption due to neurotoxic acetogenins, potentially contributing to atypical parkinsonism. The supplement may interact with antihypertensive medications due to its hypotensive effects and could enhance the effects of diabetes medications. Pregnant and breastfeeding women should avoid soursop supplements due to insufficient safety data. Individuals with Parkinson's disease or movement disorders should exercise particular caution. ## Scientific Research Human clinical evidence is extremely limited, with only one identified randomized controlled trial (PMID: 28582808) testing daily oral A. muricata leaf extract in 28 colorectal cancer patients for 8 weeks. No meta-analyses or additional RCTs were identified, with most evidence coming from preclinical in vitro studies using cancer cell lines at concentrations of 125-250 µg/mL. ## Historical & Cultural Context Annona muricata has been used in Caribbean, South American, and African traditional medicine for centuries to treat cancer, diabetes, infections, and [inflammation](/ingredients/condition/inflammation). In modern Jamaican and Trinidad oncology clinics, 60-80.9% of cancer patients self-medicate with it, demonstrating persistent traditional use. ## Synergistic Combinations Curcumin, Green Tea Extract, Resveratrol, Vitamin D3, Milk Thistle ## Frequently Asked Questions ### What is the active compound in soursop? The primary active compounds in soursop are annonaceous acetogenins, particularly annonacin and muricin. These compounds demonstrate selective cytotoxicity against cancer cells by disrupting mitochondrial function while generally sparing healthy cells. ### How much soursop extract should I take daily? Clinical studies have used varying dosages, with the colorectal cancer study using leaf extract for 8 weeks, though specific dosing wasn't standardized. Most commercial supplements suggest 500-1000mg of leaf extract daily, but optimal therapeutic dosing requires further clinical research. ### Can soursop cause neurological problems? Yes, chronic high-dose soursop consumption may cause neurological issues due to neurotoxic acetogenins, potentially contributing to atypical parkinsonism. This risk appears associated with regular, long-term use rather than occasional supplementation. ### Is soursop fruit as effective as leaf extract? Soursop leaves contain higher concentrations of acetogenins compared to the fruit pulp, making leaf extracts more potent for therapeutic applications. Most research showing anti-cancer effects has focused on standardized leaf extracts rather than fruit consumption. ### Does soursop interact with blood pressure medications? Soursop may enhance the hypotensive effects of blood pressure medications due to its own blood pressure-lowering properties. Individuals taking antihypertensive drugs should monitor their blood pressure closely and consult healthcare providers before using soursop supplements. ### What does research show about soursop for colorectal cancer support? A randomized controlled trial (n=28) found that soursop leaf extract demonstrated higher ex vivo serum cytotoxicity against colorectal cancer cell lines after 8 weeks of supplementation, suggesting potential supportive benefits. However, this represents moderate-level evidence from a small study, and soursop should not be used as a replacement for conventional cancer treatment. Additional larger clinical trials are needed to establish efficacy and optimal dosing protocols. ### Which form of soursop—fruit, leaf, or extract—has the strongest anti-cancer activity? Preclinical research demonstrates that soursop leaf extracts show the highest cytotoxicity against cancer cell lines (breast, colon, lung, prostate) with ED50 values <1 µg/mL, outperforming whole fruit in laboratory settings. However, this evidence comes from test-tube and animal studies rather than human trials, so real-world efficacy remains uncertain. The leaf extract form appears more concentrated in bioactive compounds compared to eating fresh fruit alone. ### Is soursop safe for people undergoing cancer treatment? While soursop leaf extract shows preliminary anti-cancer activity in laboratory studies, individuals undergoing chemotherapy or radiation should consult their oncologist before supplementing, as potential interactions with cancer medications are not fully established. Soursop compounds may affect drug metabolism or efficacy, and safety data in this population is limited. Medical supervision is essential to prevent adverse effects or treatment interference. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*