# Elder Flower (Sambucus nigra)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/elder-flower
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-04-04
**Evidence Score:** 2 / 10
**Category:** European
**Also Known As:** Sambucus nigra L., European elder flower, Black elder flower, Elderflower, Common elder flower, Elder blossom, Sambucus flower, European elderflower

## Overview

Elder flower (Sambucus nigra) contains quercetin at approximately 1,888 µg/g extract, a flavonoid that modulates [antioxidant](/ingredients/condition/antioxidant) enzyme activity and [inflammatory](/ingredients/condition/inflammation) signaling pathways. Clinical evidence for human health benefits remains absent, with current support limited to traditional respiratory use and theoretical activity based on phytochemical composition.

## Health Benefits

• No clinical health benefits documented - research focuses only on chemical composition
• Traditional use suggests respiratory support (evidence quality: traditional only)
• Contains quercetin (1,888 µg/g extract) and other flavonoids with potential [antioxidant](/ingredients/condition/antioxidant) properties (evidence quality: theoretical based on compounds)
• Rich in phenolic acids like caffeoylquinic acid (9,146 µg/g flower) with possible [anti-inflammatory](/ingredients/condition/inflammation) potential (evidence quality: theoretical)
• Contains volatile monoterpenes including linalool oxide (up to 87% in fresh flowers) with potential aromatherapeutic properties (evidence quality: theoretical)

## Mechanism of Action

Quercetin, the primary flavonoid in elder flower at ~1,888 µg/g extract, inhibits pro-[inflammatory](/ingredients/condition/inflammation) enzymes including COX-2 and lipoxygenase while modulating NF-κB signaling pathways that regulate cytokine production. Additional flavonoids and phenolic acids in the extract may upregulate endogenous [antioxidant](/ingredients/condition/antioxidant) enzymes such as superoxide dismutase and catalase through Nrf2 pathway activation. These mechanisms remain theoretical for elder flower specifically, as no controlled human trials have confirmed these pathways are activated at doses achieved through typical supplementation.

## Clinical Summary

No published clinical trials have evaluated elder flower (Sambucus nigra flowers) as an isolated intervention for any health outcome in human subjects. Available evidence is restricted to in vitro analyses confirming the presence of quercetin (~1,888 µg/g extract) and related flavonoids, alongside ethnobotanical records documenting traditional respiratory and diaphoretic use across European folk medicine. Some elderberry (fruit) research exists but cannot be extrapolated to the flower, as phytochemical profiles differ substantially between plant parts. The overall evidence quality for elder flower health claims is rated traditional or theoretical, meaning no quantified efficacy data from randomized controlled trials currently exists.

## Nutritional Profile

Elder flowers (Sambucus nigra) are consumed primarily as infusions, extracts, or cordials rather than as a caloric food source, so macronutrient contribution is negligible. Key bioactive compounds and micronutrients include: **Flavonoids:** quercetin (~1,888 µg/g dry extract), kaempferol (~594 µg/g), isorhamnetin (~484 µg/g), and their glycosides including rutin (quercetin-3-O-rutinoside, ~2,100–4,000 µg/g dry flower depending on cultivar). **Phenolic acids:** 5-O-caffeoylquinic acid (chlorogenic acid) is the dominant phenolic acid (~9,146 µg/g dry flower), with smaller amounts of 3-O- and 4-O-caffeoylquinic acid isomers, p-coumaric acid, and caffeic acid. Total phenolic content ranges ~3.5–5.5 g GAE/100 g dry flower. **Triterpenes:** ursolic acid and oleanolic acid present in flower tissue (~0.5–1.2% dry weight). **Essential oil components:** linalool, cis- and trans-rose oxide, hotrienol, and nerol oxide contribute to aroma but are present in trace amounts (<0.1%). **Vitamins:** modest vitamin C content (~28–36 mg/100 g fresh flower), with trace B-vitamins. **Minerals:** potassium (~1,200–1,800 mg/100 g dry), calcium (~700–900 mg/100 g dry), magnesium (~200–350 mg/100 g dry), phosphorus (~300–500 mg/100 g dry), and iron (~8–12 mg/100 g dry), though mineral bioavailability may be reduced by phenolic-mineral binding. **Mucilage and pectin:** small amounts of soluble fiber-like polysaccharides present. **Lectins and cyanogenic glycosides:** sambunigrin is present in trace amounts in flowers (much lower than in bark/leaves) and is largely degraded by heat during traditional preparation. **Bioavailability notes:** Quercetin glycosides (especially rutin) have moderate oral bioavailability (~15–20% absorption), enhanced when consumed with dietary fat; chlorogenic acid is partially hydrolyzed by gut microbiota to caffeic acid, which is then absorbed in the colon. Hot-water infusion extracts approximately 40–60% of total phenolics from dried flowers.

## Dosage & Preparation

No clinically studied dosage ranges, forms, or standardization details are available as no human trials have been documented. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Raw or unprocessed elder flower may contain trace cyanogenic glycosides, though concentrations in flowers are substantially lower than in unripe elder berries and leaves, and are generally considered safe in culinary and tea preparations. Individuals taking anticoagulant medications such as warfarin should exercise caution, as quercetin has demonstrated mild platelet aggregation inhibition in in vitro models and could theoretically potentiate bleeding risk. Pregnant and breastfeeding women are advised to avoid medicinal doses of elder flower due to insufficient safety data, although food-level consumption in teas is traditionally considered low-risk. Allergic reactions are possible in individuals sensitive to plants in the Adoxaceae family, and [immunomodulatory](/ingredients/condition/immune-support) effects remain uncharacterized in immunocompromised populations.

## Scientific Research

No clinical trials, RCTs, or meta-analyses on elder flower (Sambucus nigra flowers) were found in the research dossier. Available studies focus exclusively on chemical composition and extraction methods rather than clinical outcomes or human health effects.

## Historical & Cultural Context

Elder flower has historical use in European traditional medicine as a native European and North American herb. However, specific traditional applications, duration of use, or targeted health conditions are not detailed in the available research.

## Synergistic Combinations

Elderberry, Echinacea, Vitamin C, Zinc, Astragalus

## Frequently Asked Questions

### What is elder flower used for traditionally?

Elder flower (Sambucus nigra) has been used in European traditional medicine primarily as a diaphoretic to promote sweating during colds and fevers, and as a respiratory support herb for symptoms of congestion and mild bronchitis. It has also been applied topically in skin preparations and consumed as a tea or cordial. These uses are based on centuries of ethnobotanical practice rather than controlled clinical trials.

### How much quercetin is in elder flower extract?

Analytical studies have identified quercetin at approximately 1,888 µg per gram of elder flower extract, making it one of the primary bioactive flavonoids in the plant. Quercetin is recognized for its theoretical antioxidant and anti-inflammatory properties through inhibition of COX-2 and modulation of NF-κB. However, bioavailability of quercetin from whole flower extracts in humans has not been specifically studied for this source.

### Is elder flower the same as elderberry for immune support?

Elder flower and elderberry come from the same plant (Sambucus nigra) but are different plant parts with distinct phytochemical profiles, and they should not be considered interchangeable. Elderberry fruit has been studied in randomized controlled trials for influenza duration, while elder flower has no equivalent clinical trial data supporting immune benefits. Any immune-related properties attributed to elder flower remain theoretical, based on its flavonoid content rather than direct human evidence.

### Are elder flower supplements safe to take daily?

Daily medicinal supplementation with elder flower lacks safety validation from clinical trials, meaning no established safe dosing range, tolerable upper intake level, or long-term safety profile has been defined. Culinary and tea use at low doses has a long history of apparent tolerability in European populations. Individuals on anticoagulants, immunosuppressants, or diuretics, and those who are pregnant, should consult a healthcare provider before using elder flower supplements due to potential quercetin-related interactions and insufficient reproductive safety data.

### Does elder flower have anti-inflammatory properties?

Elder flower contains quercetin (~1,888 µg/g extract) and other flavonoids that theoretically inhibit pro-inflammatory enzymes COX-2 and lipoxygenase and suppress NF-κB-driven cytokine production based on in vitro and quercetin-specific research. No human clinical trials have tested elder flower extract directly for anti-inflammatory outcomes such as reduced CRP, IL-6, or TNF-alpha levels. Current anti-inflammatory claims are therefore classified as theoretical, extrapolated from quercetin pharmacology rather than demonstrated in elder flower intervention studies.

### Does elder flower interact with cold and flu medications?

Elder flower is traditionally used for respiratory symptoms, but there is limited clinical research on direct interactions with common cold and flu medications like antihistamines or decongestants. If you are taking prescription antiviral medications or immunosuppressants, consult a healthcare provider before adding elder flower supplements, as the herb's immune-modulating properties could potentially affect their efficacy. Most over-the-counter combinations appear unlikely to cause serious interactions, but individual responses vary.

### Is elder flower safe during pregnancy and breastfeeding?

There is insufficient clinical evidence to establish the safety of elder flower supplementation during pregnancy and breastfeeding. While elder flowers have been used traditionally for centuries, the lack of rigorous studies in pregnant and nursing populations means most practitioners recommend avoiding supplemental forms as a precaution during these sensitive periods. Consult your healthcare provider before use if you are pregnant or nursing.

### What is the difference between elder flower extract and dried elder flower tea?

Dried elder flower tea is a whole-plant preparation with variable compound concentrations depending on drying methods and brewing time, while standardized extracts provide measured levels of active compounds like quercetin and caffeoylquinic acid for consistent dosing. Extracts are typically more concentrated and bioavailable but may lack some synergistic compounds present in whole flowers. Tea preparations are gentler and more accessible but offer less predictable potency per serving.

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*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
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