# Hypoxis hemerocallidea **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/hypoxis-hemerocallidea **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-19 **Evidence Score:** 4 / 10 **Category:** African **Also Known As:** Hypoxis hemerocallidea, African potato, Star lily, Yellow star, Sterretjie, Inkomfe, African star grass, Hypoxis rooperi ## Overview Hypoxis hemerocallidea is an African medicinal plant containing hypoxoside and rooperol as primary bioactive compounds. These compounds demonstrate blood sugar regulation and [antioxidant activity](/ingredients/condition/antioxidant) through enhanced hepatic antioxidant enzyme systems. ## Health Benefits • Blood sugar regulation: In diabetic rat models, 200 mg/kg aqueous extract reduced [blood glucose](/ingredients/condition/weight-management) by 73.3% after 6 weeks (preliminary evidence, animal study) • [Antioxidant](/ingredients/condition/antioxidant) support: Significantly elevated hepatic antioxidant markers (ORAC, FRAP, catalase) in diabetic rats (preliminary evidence, PMID: 27403200) • [Anti-inflammatory](/ingredients/condition/inflammation) effects: Methanolic extract reduced inflammation markers (MPO activity, NF-κB activation) in mouse colitis models (preliminary evidence, PMID: 20404038) • [Immune system](/ingredients/condition/immune-support) support: Traditional use as immunostimulant in Southern African medicine, though clinical evidence lacking • Infection resistance: Prophylactic use reduced severity of B. hyodysenteriae infection in mice (preliminary evidence) ## Mechanism of Action Hypoxis hemerocallidea's primary bioactives hypoxoside and rooperol enhance hepatic antioxidant enzyme systems including catalase and [glutathione](/ingredients/condition/detox) peroxidase. The compounds appear to modulate glucose metabolism through improved [insulin sensitivity](/ingredients/condition/weight-management) pathways. These mechanisms contribute to both glycemic control and [oxidative stress](/ingredients/condition/antioxidant) reduction in metabolic tissues. ## Clinical Summary Current evidence for Hypoxis hemerocallidea relies primarily on animal studies rather than human trials. In diabetic rat models, 200 mg/kg aqueous extract reduced [blood glucose](/ingredients/condition/weight-management) levels by 73.3% after 6 weeks of treatment. The same studies showed significant elevation of hepatic [antioxidant](/ingredients/condition/antioxidant) markers including ORAC, FRAP, and catalase activity. Human clinical data remains limited, making evidence strength preliminary at this stage. ## Nutritional Profile Hypoxis hemerocallidea (African Potato) corm is not typically consumed as a food for macronutrient value but rather as a medicinal preparation. Key bioactive compounds include: • Hypoxoside: The primary norlignan diglucoside, found at approximately 3.5–5.0% dry weight in the corm; upon hydrolysis by β-glucosidase (including gut flora enzymes), it converts to the biologically active aglycone rooperol. • Rooperol: A potent dicatechol with strong [antioxidant](/ingredients/condition/antioxidant) and cytotoxic properties; bioavailability is dependent on enzymatic deconjugation in the gastrointestinal tract, with oral bioavailability estimated to be moderate but variable. • Sterols and sterolins: Contains β-sitosterol (~0.05–0.1% dry weight) and its glucoside β-sitosterol glucoside (BSS:BSSG ratio approximately 100:1 in standardized extracts), which are credited with [immunomodulatory](/ingredients/condition/immune-support) activity. • Phenolic acids: Includes gallic acid, protocatechuic acid, and caffeic acid derivatives contributing to total phenolic content of approximately 15–25 mg GAE/g dry extract. • Flavonoids: Quercetin and kaempferol glycosides detected at lower concentrations (~2–5 mg/g dry extract). • Stanols and fatty acids: Minor amounts of stigmasterol and campesterol; trace long-chain fatty acids. • Minerals: Corm contains potassium (~800–1200 mg/100g dry weight), calcium (~150–300 mg/100g), magnesium (~100–200 mg/100g), iron (~5–15 mg/100g), and zinc (~2–5 mg/100g), though these values vary significantly with soil conditions and geographic origin. • Fiber: The corm is rich in dietary fiber (~30–45% dry weight), predominantly insoluble fiber including cellulose and hemicellulose. • Protein: Low protein content (~3–6% dry weight). • Carbohydrates: Starch-rich corm with total carbohydrates approximately 40–55% dry weight. • Vitamins: Limited data; trace amounts of vitamin C and B-complex vitamins have been reported. • Bioavailability notes: Hypoxoside is water-soluble and well-absorbed orally but requires enzymatic conversion to rooperol for biological activity; β-sitosterol has inherently low oral bioavailability (~5–10%) which is improved in glucoside form; traditional aqueous decoction preparation extracts primarily hypoxoside and polar phenolics while sterol extraction is enhanced with lipid-based or ethanolic preparations. ## Dosage & Preparation Animal studies used aqueous extract at 200-800 mg/kg body weight daily. Human pharmacokinetic studies used 15 mg/kg hypoxoside content once daily for 7 days. No standardized therapeutic dosage has been established for clinical use. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions Safety data for Hypoxis hemerocallidea in humans is limited due to lack of comprehensive clinical trials. No significant adverse effects were reported in available animal studies at therapeutic dosages. Potential interactions with diabetes medications should be monitored due to glucose-lowering effects. Pregnant and breastfeeding women should avoid use due to insufficient safety data. ## Scientific Research Clinical evidence is limited to preclinical animal studies and small human pharmacokinetic trials, with no human RCTs identified. Key studies include a rat diabetes model (n=60, PMID: 27403200) showing 73.3% [blood glucose](/ingredients/condition/weight-management) reduction, and a mouse colitis study (PMID: 20404038) demonstrating [anti-inflammatory](/ingredients/condition/inflammation) effects. Human data consists only of pharmacokinetic interaction studies (n=16) showing no interaction with HIV medications (PMID: 19374071). ## Historical & Cultural Context In Southern African traditional medicine, Hypoxis hemerocallidea has been used for centuries as an immunostimulant and treatment for HIV, diabetes, cancer, high [blood pressure](/ingredients/condition/heart-health), and infections. The plant holds particular significance in Zulu and other indigenous healing systems as a broad-spectrum remedy. ## Synergistic Combinations Cinnamon extract, Alpha-lipoic acid, Milk thistle, Curcumin, Green tea extract ## Frequently Asked Questions ### What is the effective dosage of Hypoxis hemerocallidea for blood sugar? Animal studies used 200 mg/kg aqueous extract, but human equivalent dosing has not been established through clinical trials. Standardized human dosing recommendations require further research. ### How long does Hypoxis hemerocallidea take to lower blood sugar? In diabetic rat studies, significant blood glucose reduction (73.3%) was observed after 6 weeks of daily supplementation. Human timeframes may differ and require clinical validation. ### What are the active compounds in Hypoxis hemerocallidea? The primary bioactive compounds are hypoxoside and its metabolite rooperol. These phenolic compounds are responsible for the plant's antioxidant and glucose-regulating properties. ### Can Hypoxis hemerocallidea replace diabetes medication? No, current evidence is limited to animal studies and cannot support replacement of prescribed diabetes medications. Always consult healthcare providers before making medication changes. ### Does Hypoxis hemerocallidea have side effects? Available animal studies show no significant adverse effects at therapeutic doses. However, comprehensive human safety data is lacking, requiring caution with supplementation. ### Is Hypoxis hemerocallidea safe to take with diabetes medications? Hypoxis hemerocallidea may have additive blood sugar-lowering effects when combined with diabetes medications, potentially increasing hypoglycemia risk. You should consult your healthcare provider before combining this herb with prescription diabetes drugs, and blood glucose monitoring is recommended if you choose to use both. Do not adjust medication dosages without medical supervision. ### Who should avoid Hypoxis hemerocallidea supplementation? People with existing hypoglycemia (low blood sugar), pregnant or breastfeeding women, and those with liver or kidney disease should avoid Hypoxis hemerocallidea due to limited safety data in these populations. Individuals already taking blood sugar-lowering medications or supplements should consult a healthcare provider before use. Those with known allergies to members of the Hypoxidaceae family should also avoid this ingredient. ### What does current research show about Hypoxis hemerocallidea's effectiveness in humans? Most evidence for Hypoxis hemerocallidea comes from animal studies, particularly diabetic rat models showing significant blood glucose reduction and antioxidant improvements. Human clinical trials are limited, making it difficult to confirm efficacy and optimal dosing in actual patients. More rigorous human research is needed before definitive health claims can be made about this traditional African herb. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*