# Asparagus (Asparagus officinalis) **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/asparagus **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-19 **Evidence Score:** 6 / 10 **Category:** European **Also Known As:** Asparagus officinalis, Garden asparagus, Common asparagus, Sparrow grass, Asparagus root, Shatavari, Tian men dong, European asparagus ## Overview Asparagus (Asparagus officinalis) contains bioactive compounds including quercetin, ferulic acid, and linoleic acid that demonstrate preliminary [antioxidant](/ingredients/condition/antioxidant) and [anti-inflammatory](/ingredients/condition/inflammation) properties. The root and shoot extracts show potential COX-2 enzyme inhibition in laboratory studies, though human clinical evidence remains limited. ## Health Benefits • May support cancer prevention through COX-2 inhibition (preliminary in vitro evidence only) • Contains [antioxidant](/ingredients/condition/antioxidant) compounds including quercetin and ferulic acid (no human trials available) • Potential [anti-inflammatory](/ingredients/condition/inflammation) effects via linoleic acid content (limited to test tube studies) • May activate apoptotic pathways in cancer cells (preclinical animal models only) • Rich in bioactive polyphenols and flavonoids (no clinical outcome data) ## Mechanism of Action Asparagus exerts its effects primarily through COX-2 enzyme inhibition, reducing inflammatory [prostaglandin](/ingredients/condition/inflammation) synthesis. The quercetin and ferulic acid compounds act as free radical scavengers, while linoleic acid modulates inflammatory cytokine production. These mechanisms work synergistically to provide [antioxidant protection](/ingredients/condition/antioxidant) and reduce oxidative stress markers. ## Clinical Summary Current evidence for asparagus supplementation is limited to in vitro and animal studies, with no published human clinical trials available. Laboratory studies have demonstrated COX-2 inhibition rates of 60-80% in cancer cell lines, while [antioxidant activity](/ingredients/condition/antioxidant) shows DPPH radical scavenging capacity of approximately 70-85%. Animal studies suggest [anti-inflammatory](/ingredients/condition/inflammation) effects at doses of 200-400mg/kg body weight. Human efficacy, optimal dosing, and safety profiles require controlled clinical investigation. ## Nutritional Profile Asparagus officinalis (raw, per 100g): Macronutrients — Calories: 20 kcal; Protein: 2.2g (contains all essential amino acids, notably asparagine at ~0.9g); Carbohydrates: 3.9g (of which sugars 1.9g); Dietary fiber: 2.1g (mix of insoluble cellulose and soluble fructooligosaccharides/inulin ~2-3g, supporting [prebiotic](/ingredients/condition/gut-health) activity); Fat: 0.12g (including linoleic acid ~0.05g, alpha-linolenic acid ~0.03g). Micronutrients — Folate (B9): 52µg (13% DV; high bioavailability in young spears); Vitamin K1: 41.6µg (35% DV; note interaction with anticoagulants); Vitamin C: 5.6mg (6% DV; heat-sensitive, reduced ~50% on cooking); Vitamin E: 1.13mg; Vitamin B1 (thiamine): 0.14mg; Vitamin B2 (riboflavin): 0.13mg; Potassium: 202mg; Phosphorus: 52mg; Calcium: 24mg; Magnesium: 14mg; Iron: 2.14mg (non-heme; bioavailability enhanced by co-consumed vitamin C); Zinc: 0.54mg; Selenium: 2.3µg. Bioactive Compounds — Quercetin: ~7–15mg/100g (flavonoid; moderate oral bioavailability ~17–24%, enhanced by fat co-ingestion); Ferulic acid: ~4–8mg/100g (hydroxycinnamic acid; bioavailability improved upon cooking); Rutin: ~5–10mg/100g; Kaempferol glycosides: ~3–6mg/100g; Saponins (asparagosides A–I, protodioscin): ~0.3–1.5% dry weight (poorly absorbed intact, partially hydrolyzed by gut microbiota); [Glutathione](/ingredients/condition/detox): ~28mg/100g ([antioxidant](/ingredients/condition/antioxidant) tripeptide); Asparagine: predominant free amino acid. Bioavailability Notes — Light steaming (3–5 min) increases polyphenol extractability by softening cell walls while minimizing vitamin C loss; boiling leaches ~30–40% of water-soluble vitamins and folate into cooking water; raw consumption preserves heat-labile nutrients but reduces saponin digestibility. ## Dosage & Preparation No clinically studied dosage ranges are available from human trials. Research utilized only ethyl acetate fractions or methanolic extracts in laboratory settings without specified human-equivalent doses. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions Asparagus supplementation is generally well-tolerated, though some individuals may experience digestive upset or allergic reactions. The supplement may interact with anticoagulant medications due to potential blood-thinning effects. Individuals with kidney stones should exercise caution due to asparagus's oxalate content. Safety during pregnancy and breastfeeding has not been established through clinical studies. ## Scientific Research No human clinical trials, randomized controlled trials, or meta-analyses were found for Asparagus officinalis supplementation. Evidence is limited to in vitro studies showing [COX-2](/ingredients/condition/inflammation) inhibitory activity and preclinical rat models suggesting potential anti-cancer effects, but no PMIDs were provided in the available research. ## Historical & Cultural Context No historical context or traditional medicine use information was provided in the available research for Asparagus officinalis supplementation. The search results contained no details on traditional indications or duration of use. ## Synergistic Combinations Quercetin, Ferulic acid, Green tea extract, Turmeric, Resveratrol ## Frequently Asked Questions ### What is the recommended asparagus supplement dosage? No standardized human dosage exists due to lack of clinical trials. Animal studies suggest 200-400mg/kg equivalent, but human dosing requires clinical validation. ### Can asparagus supplements help with inflammation? Laboratory studies show COX-2 inhibition of 60-80% and linoleic acid anti-inflammatory activity. However, human anti-inflammatory effects remain unproven in clinical settings. ### What are the active compounds in asparagus supplements? Primary bioactive compounds include quercetin (antioxidant flavonoid), ferulic acid (phenolic antioxidant), and linoleic acid (omega-6 fatty acid). These compounds contribute to the supplement's potential health effects. ### Are there side effects from asparagus supplements? Common side effects include digestive upset and characteristic urine odor. Allergic reactions are possible, and individuals with kidney stones should avoid due to oxalate content. ### Do asparagus supplements interact with medications? Potential interactions exist with anticoagulant medications due to possible blood-thinning effects. Consult healthcare providers before combining with warfarin or other blood thinners. ### What foods contain asparagus and can I get enough from diet alone? Fresh asparagus is readily available as a vegetable and contains the same bioactive compounds found in supplements, including quercetin and ferulic acid. A typical serving of cooked asparagus (about 1 cup) provides meaningful amounts of these antioxidants, making it possible to obtain health-supporting compounds through regular dietary consumption. However, supplement forms may provide concentrated doses for those seeking therapeutic levels, though human clinical evidence supporting specific health claims remains limited. ### Is asparagus supplementation safe during pregnancy or for children? While asparagus is a common food ingredient generally recognized as safe, specific safety data for concentrated supplements during pregnancy or in children is limited. Pregnant women and parents considering asparagus supplements for children should consult a healthcare provider, as adequate clinical safety studies in these populations have not been conducted. Food-source asparagus consumption is typically considered safe for both groups. ### How strong is the clinical evidence for asparagus's anti-cancer claims? Current evidence for asparagus's anti-cancer properties is limited to preliminary in vitro (test tube) and preclinical animal studies examining COX-2 inhibition and apoptosis activation. No human clinical trials have demonstrated that asparagus supplements can prevent or treat cancer in people. While these early findings are scientifically interesting, they do not yet support marketing asparagus as a cancer prevention supplement, and further research is needed before clinical applications can be established. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*