# Pokeweed (Phytolacca americana)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/pokeweed
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-29
**Evidence Score:** 2 / 10
**Category:** Native American
**Also Known As:** poke, poke sallet, pokeweed, American pokeweed, pokeroot, inkberry, pigeon berry, cancer root, red ink plant, scoke, Virginia poke, poke berry

## Overview

Pokeweed (Phytolacca americana) contains pokeweed mitogen (PWM), a lectin that selectively activates B-lymphocytes and [T-cell](/ingredients/condition/immune-support)s by binding to carbohydrate residues on immune cell surface receptors. The plant also contains phytolaccine, phytolaccatoxin, and phytolaccigenin, which contribute to both its medicinal research interest and its significant toxicity profile.

## Health Benefits

• In vitro immunological research: Pokeweed mitogen (lectin) stimulates B-cell proliferation for immunodeficiency diagnostics and immunotherapy research (laboratory use only, no human trials)
• Traditional medicinal applications: Used historically in folk medicine, though all parts of the plant are toxic and no clinical evidence supports therapeutic use
• Homeopathic formulations: Appears in FDA NDC homeopathic products for various conditions (no clinical evidence provided)
• [Antioxidant](/ingredients/condition/antioxidant) potential: Contains betalain pigments with theoretical antioxidant properties (mechanism unelaborated, no human studies)
• Historical food use: Young shoots and leaves consumed as 'poke sallet' when properly cooked (traditional practice only, significant toxicity risk)

## Mechanism of Action

Pokeweed mitogen (PWM), a galactose-binding lectin, cross-links surface immunoglobulins and CD21 co-receptors on B-lymphocytes, triggering polyclonal activation and IgM secretion without antigen specificity. The triterpene saponin phytolaccigenin inhibits protein synthesis by inactivating 60S ribosomal subunits, a mechanism shared with ricin and abrin. Phytolaccatoxin disrupts cellular membrane integrity through saponin-mediated pore formation, contributing to gastrointestinal cytotoxicity upon ingestion.

## Clinical Summary

No controlled human clinical trials exist evaluating pokeweed extracts as a therapeutic supplement due to its well-documented systemic toxicity. Pokeweed mitogen has been extensively used in vitro and ex vivo as a laboratory reagent to assess lymphocyte function in immunodeficiency diagnostics, with decades of research confirming its B-cell mitogenic activity at concentrations of 1–10 µg/mL. A limited number of historical ethnobotanical studies document topical and oral folk medicine use in rural North American populations for arthritis and skin conditions, but these lack safety controls and quantified outcomes. The overall evidence base does not support pokeweed as a safe or effective human supplement, and existing research is confined to laboratory and historical observational contexts.

## Nutritional Profile

Pokeweed (Phytolacca americana) nutritional data is limited due to its toxic nature precluding standard dietary analysis, but the following compounds are documented: Toxic alkaloids: phytolaccine and phytolaccotoxin present throughout plant tissues, with highest concentrations in roots (estimated 0.1-0.5% dry weight) and seeds. Lectins/mitogens: Pokeweed mitogen (PWM), a glycoprotein complex of 5 isolectins (Pa-1 through Pa-5) at approximately 2-4 mg/g in mature berries and leaves; these lectins are responsible for B-cell and [T-cell](/ingredients/condition/immune-support) mitogenic activity. Saponins: Phytolaccagenin and related triterpenoid saponins at roughly 1-3% dry weight in roots, contributing to hemolytic and irritant properties. Triterpene glycosides: Phytolaccoside A-G documented in root tissue. Resins: Phytolaccin present in roots. Oxalic acid: Present in leaves at concentrations comparable to other oxalate-accumulating plants (estimated 500-1000 mg/100g fresh weight), reducing mineral bioavailability. Young leaves (poke sallet, when triple-boiled): Contain residual Vitamin C (approx. 30-50 mg/100g before cooking, significantly reduced after boiling), Vitamin A precursors (beta-carotene), and small amounts of calcium, iron, and potassium, though bioavailability is severely compromised by oxalates and residual toxins even after preparation. Anthocyanins: Betacyanin pigments (betanin and isobetanin) in berries at 120-200 mg/100g fresh weight, responsible for deep purple coloration. Fiber: Estimated 2-4g/100g in leaves. Protein: Approximately 3-5g/100g in young leaves. Bioavailability note: All nutritional value is clinically irrelevant for human consumption; even traditional 'poke sallet' preparation (repeated boiling with water changes) does not fully eliminate toxic alkaloids and lectins, making any nutrient absorption a secondary concern to toxicity risk.

## Dosage & Preparation

No clinically studied dosage ranges are available for Pokeweed extracts, powders, or standardized forms. The plant's documented toxicity (containing phytolaccatoxin, triterpene saponins, and alkaloid phytolaccin) precludes safe dosing recommendations. All parts of the plant are toxic, with highest concentrations in roots. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

All parts of pokeweed — root, berries, leaves, and seeds — are toxic to humans, with the root containing the highest concentration of phytolaccatoxin and phytolaccigenin; ingestion of as little as a few berries can cause severe vomiting, diarrhea, hypotension, and respiratory depression in children. Pokeweed mitogen nonspecifically stimulates lymphocyte proliferation, posing theoretical risks of autoimmune exacerbation in individuals with lupus, rheumatoid arthritis, or other autoimmune conditions. No established safe supplemental dosage exists; historical poultices and teas have been associated with poisoning cases requiring emergency intervention, and the FDA classifies pokeweed as an unsafe herb. It is absolutely contraindicated during pregnancy due to uterotonic and potentially abortifacient saponin activity, and should never be combined with immunosuppressant medications such as cyclosporine or corticosteroids.

## Scientific Research

No human clinical trials, RCTs, or meta-analyses were identified for Pokeweed in the provided research. The plant's primary research application involves pokeweed mitogen for in vitro B-cell proliferation assays in immunological studies, but this lacks any human trial data. The research confirms significant toxicity in all plant parts, precluding clinical investigation.

## Historical & Cultural Context

Pokeweed has historical significance in North American folk medicine, with Native American and early settler practices spanning centuries. Young shoots and leaves were traditionally prepared as 'poke sallet' after careful cooking, while roots and berries were used cautiously for various ailments despite toxicity concerns. The plant appears in global traditional systems including Chinese medicine ('Shanglu'), typically in low-dose or homeopathic contexts.

## Synergistic Combinations

None recommended due to toxicity

## Frequently Asked Questions

### Is pokeweed safe to eat or use as a supplement?

Pokeweed is not safe for consumption as a supplement; all plant parts contain toxic saponins including phytolaccatoxin and phytolaccigenin. Even young leaves prepared by traditional boiling methods (poke sallet) carry residual toxicity risk, and the root is acutely dangerous. The FDA classifies pokeweed as an unsafe herb with no approved therapeutic dosage.

### What is pokeweed mitogen and what does it do?

Pokeweed mitogen (PWM) is a galactose-binding lectin extracted from Phytolacca americana that stimulates polyclonal activation of B-lymphocytes and T-helper cells by binding carbohydrate moieties on immune cell surface receptors. It is used exclusively as a laboratory reagent at concentrations of 1–10 µg/mL to assess lymphocyte function and diagnose immunodeficiency states. PWM has no approved or safe application in human supplementation or direct therapeutic use.

### What are the symptoms of pokeweed poisoning?

Pokeweed poisoning typically presents within 2–6 hours of ingestion with severe nausea, projectile vomiting, profuse watery diarrhea, abdominal cramping, and hypersalivation caused by phytolaccatoxin and saponin membrane disruption. Severe cases progress to hypotension, tachycardia, respiratory depression, and seizures, particularly in children who consume berries. Fatalities have been reported, and poisoning requires emergency medical intervention including IV fluid support and symptomatic management.

### Did Native Americans use pokeweed medicinally?

Several Native American tribes, including the Cherokee and Iroquois, historically used pokeweed root preparations topically for skin conditions, joint inflammation, and as an emetic for purging illness. Berries were occasionally used in small quantities as a dye and in folk medicine preparations for rheumatism, though practitioners were aware of the plant's dangerous properties. These ethnobotanical uses predate modern toxicology and should not be interpreted as endorsements for safe contemporary supplemental use.

### Can pokeweed help with arthritis or inflammation?

Historical folk medicine records document pokeweed root poultices applied topically for joint pain and arthritis, with some saponins demonstrating anti-inflammatory activity in preclinical cell studies by inhibiting NF-κB signaling pathways. However, no controlled human trials have evaluated pokeweed for arthritis treatment, and the systemic toxicity of phytolaccigenin and phytolaccatoxin makes oral use dangerous. Safer, evidence-backed alternatives such as boswellic acids or curcumin are strongly preferred for inflammation management.

### Is pokeweed safe during pregnancy or for nursing mothers?

Pokeweed is contraindicated during pregnancy and breastfeeding due to its systemic toxicity affecting multiple organ systems, including potential effects on the fetus and infant. All parts of the plant—roots, stems, leaves, berries, and seeds—contain toxic saponins and oxalates that can be harmful at any dose. Pregnant or nursing women should completely avoid pokeweed supplements and any formulations containing this ingredient.

### Does pokeweed interact with immunosuppressant medications?

Pokeweed mitogen is a potent B-cell and T-cell stimulant, which means it may theoretically counteract or interfere with immunosuppressant drugs used for autoimmune conditions, organ transplants, or cancer treatment. Although human drug-interaction studies have not been conducted, the mechanism of action suggests potential serious interactions with medications like corticosteroids, methotrexate, and TNF inhibitors. Anyone taking immunosuppressive therapy should avoid pokeweed entirely and consult their healthcare provider before considering any related supplement.

### What is the difference between pokeweed used in homeopathic remedies versus herbal supplements?

Homeopathic pokeweed formulations are diluted according to homeopathic potency standards (often diluted to the point where no original substance remains), whereas herbal pokeweed supplements contain concentrated plant material and retain significant levels of toxic compounds. Homeopathic forms are considered non-toxic due to extreme dilution, but herbal preparations present genuine poisoning risk. Neither form has reliable clinical evidence of efficacy, and herbal forms should be avoided entirely due to serious toxicity concerns.

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