# Cucurbita moschata (Butternut Squash)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/cucurbita-moschata
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-24
**Evidence Score:** 2 / 10
**Category:** Fruit
**Also Known As:** Cucurbita moschata, Butternut pumpkin, Winter squash, Calabaza, Muscade de Provence, Doubeurre, Gramma

## Overview

Butternut squash (Cucurbita moschata) contains bioactive compounds that stabilize red blood cell membranes and modulate [inflammatory pathway](/ingredients/condition/inflammation)s. The hydro-methanolic flower extract demonstrates dose-dependent analgesic and anti-inflammatory properties through membrane stabilization mechanisms.

## Health Benefits

• Pain relief: Hydro-methanolic flower extract showed dose-dependent analgesic effects at 200-400 mg/kg in mice (PMID: 37764349) - Preliminary evidence only
• [Anti-inflammatory](/ingredients/condition/inflammation) action: Flower extract demonstrated human RBC membrane stabilization up to 90.89% at 125 µg/mL, comparable to diclofenac - In vitro evidence only
• Wound healing: 20% fruit peel extract improved wound repair in rat models (PMID: 34568828) - Preliminary animal evidence
• Blood sugar management: Extracts showed α-amylase/α-glucosidase inhibition for postprandial hyperglycemia (PMID: 39437304) - In vitro evidence only
• Potential anticancer effects: Seed proteins demonstrated activity against HepG2, MDA-MB-231, and MCF-7 cell lines (PMID: 38951376) - In vitro evidence only

## Mechanism of Action

Butternut squash flower extract achieves anti-inflammatory effects primarily through red blood cell membrane stabilization, reaching 90.89% stabilization at 125 µg/mL concentrations. The bioactive compounds appear to modulate [inflammatory pathway](/ingredients/condition/inflammation)s by protecting cellular membrane integrity, similar to the mechanism observed with diclofenac. The analgesic effects likely involve modulation of pain signaling pathways, though specific receptor interactions require further investigation.

## Clinical Summary

Current evidence comes from preliminary animal studies examining butternut squash flower extract. Dose-dependent analgesic effects were demonstrated in mice at 200-400 mg/kg doses in controlled trials. In vitro studies showed significant [anti-inflammatory](/ingredients/condition/inflammation) activity with human red blood cell membrane stabilization reaching 90.89% at 125 µg/mL, comparable to diclofenac sodium. However, human clinical trials are lacking, and evidence remains preliminary requiring further research for therapeutic applications.

## Nutritional Profile

Butternut squash (raw, per 100g): Macronutrients: Carbohydrates 11.7g (predominantly starch and simple sugars including sucrose ~4.7g, glucose ~1.2g, fructose ~1.0g), Dietary fiber 2.0g (mix of soluble pectin and insoluble cellulose/hemicellulose), Protein 1.0g (limited essential amino acid profile; contains glutamic acid, aspartic acid as predominant amino acids), Fat 0.1g (negligible), Water 86.4g, Energy ~45 kcal. Key Micronutrients: Vitamin A (as beta-carotene): ~4226 IU (~532 µg RAE per 100g; beta-carotene ~2.1mg — primary carotenoid, bioavailability enhanced ~2.5-fold with co-ingestion of dietary fat), Vitamin C: ~21mg (moderate bioavailability, heat-sensitive, losses up to 50% on cooking), Vitamin B6 (pyridoxine): ~0.154mg, Folate: ~27µg DFE, Vitamin E (alpha-tocopherol): ~1.44mg, Vitamin K1: ~1.1µg, Thiamine (B1): ~0.1mg, Pantothenic acid: ~0.4mg. Minerals: Potassium: ~352mg (notable content, relevant for [blood pressure](/ingredients/condition/heart-health) modulation), Magnesium: ~34mg, Phosphorus: ~33mg, Calcium: ~48mg (bioavailability limited by moderate oxalate content), Manganese: ~0.2mg, Iron: ~0.7mg (non-heme; absorption enhanced by co-ingested Vitamin C), Zinc: ~0.15mg, Copper: ~0.07mg, Sodium: ~4mg. Bioactive Compounds: Carotenoids: Total carotenoids ~3.6–5.0mg/100g fresh weight; alpha-carotene (~0.45mg), beta-carotene (~2.1mg — primary provitamin A source), lutein+zeaxanthin (~0.025mg), beta-cryptoxanthin (trace); carotenoid bioavailability improved with lipid co-consumption and mild heat processing which disrupts chromoplast membranes. Polyphenols: Total phenolic content reported ~180–320mg GAE/100g (varies by cultivar and extraction method); predominant phenolics include chlorogenic acid, caffeic acid, p-coumaric acid, and ferulic acid; flavonoids include quercetin and kaempferol glycosides at low concentrations (~5–15mg/100g). Cucurbitacins: Trace tetracyclic triterpenoid cucurbitacins (primarily cucurbitacin B and E) present in peel and seeds at low concentrations in edible flesh; bitter genotypes contain higher amounts. Pectin: ~0.5–1.2g/100g (soluble fiber fraction; contributes to viscosity, [prebiotic](/ingredients/condition/gut-health) potential, and cholesterol modulation). Seeds (per 100g, dried): Protein ~30g, Fat ~46g (rich in linoleic acid ~20g and oleic acid ~14g), Zinc ~7.6mg (notably high bioavailability), Magnesium ~550mg, Phytosterols ~265mg (predominantly beta-sitosterol). Seed oil contains tocopherols (~40mg/100g). Bioavailability Notes: Beta-carotene conversion to retinol is variable (estimated 1:12 to 1:21 ratio in humans depending on matrix, fat intake, and individual genetics including BCMO1 polymorphisms). Cooking (steaming, roasting) increases carotenoid extractability by ~15–30% but reduces Vitamin C by ~30–50%. Fiber fermentation in colon yields short-chain fatty acids (primarily butyrate, propionate). Phenolic bioavailability is moderate (~5–10% systemic absorption) with significant colonic microbial [metabolism](/ingredients/condition/weight-management) to bioavailable phenolic acids.

## Dosage & Preparation

No clinically studied human dosages are available. Preclinical studies used oral doses of 200-400 mg/kg hydro-methanolic flower extract in mice for analgesic effects. No standardization or human dosage ranges have been established. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

No significant adverse effects have been reported in preliminary animal studies at tested dosages of 200-400 mg/kg. However, comprehensive safety data for human consumption of concentrated extracts is lacking. Potential interactions with [anti-inflammatory](/ingredients/condition/inflammation) medications like diclofenac may exist given similar mechanisms of action. Pregnant and breastfeeding women should avoid concentrated extracts due to insufficient safety data, though whole butternut squash consumption appears safe.

## Scientific Research

No human clinical trials, RCTs, or meta-analyses were identified for Cucurbita moschata. Current evidence is limited to preclinical studies including mouse pain models (PMID: 37764349), rat wound healing studies (PMID: 34568828), and in vitro cellular assays for anticancer and antidiabetic potential (PMIDs: 38951376, 39437304).

## Historical & Cultural Context

Cucurbita moschata flowers have been used for thousands of years in traditional medicine for [inflammation](/ingredients/condition/inflammation) and pain management. Pumpkin seeds from this species are traditionally used for benign prostatic hyperplasia, with the plant globally cultivated for both nutritional and therapeutic purposes.

## Synergistic Combinations

Turmeric, Ginger, Boswellia, Quercetin, Bromelain

## Frequently Asked Questions

### What dosage of butternut squash extract showed pain relief effects?

Animal studies demonstrated dose-dependent analgesic effects at 200-400 mg/kg of hydro-methanolic flower extract. However, human equivalent dosages have not been established through clinical trials.

### How effective is butternut squash extract compared to anti-inflammatory drugs?

In vitro studies showed butternut squash flower extract achieved 90.89% red blood cell membrane stabilization at 125 µg/mL, which was comparable to diclofenac sodium. However, this comparison is limited to laboratory conditions and requires clinical validation.

### Which part of butternut squash has the most anti-inflammatory compounds?

Research has focused specifically on the flower extract of Cucurbita moschata, which demonstrated the highest anti-inflammatory activity through membrane stabilization. Other parts of the plant have not been extensively studied for these properties.

### Can butternut squash extract interact with pain medications?

Potential interactions may exist with anti-inflammatory drugs due to similar membrane stabilization mechanisms observed in studies. Consultation with healthcare providers is recommended before combining concentrated extracts with existing medications.

### Is eating whole butternut squash the same as taking extract supplements?

Whole butternut squash contains much lower concentrations of bioactive compounds compared to concentrated flower extracts used in studies. The therapeutic effects observed in research used specific extract preparations at concentrated dosages not achievable through dietary consumption alone.

### What is the current strength of clinical evidence for butternut squash as a pain relief supplement?

Current evidence for butternut squash's pain-relieving properties is preliminary and limited to animal studies, with a hydro-methanolic flower extract showing dose-dependent analgesic effects in mice at 200-400 mg/kg. No human clinical trials have been completed to date, so efficacy and safety in people remain unestablished. The anti-inflammatory effects observed in laboratory studies (such as 90.89% RBC membrane stabilization) are in vitro findings that have not yet been validated in human subjects.

### Which form of butternut squash supplement—extract, powder, or whole food—has the most research support?

Most available research focuses on specialized extracts rather than common supplement forms, particularly hydro-methanolic flower extracts and fruit peel extracts studied in animal and laboratory models. Whole butternut squash provides the full nutrient profile but lacks the concentrated dosages used in experimental studies. Bioavailability and effectiveness of commercially available powders or standardized extracts have not been directly compared in human studies.

### Is butternut squash supplementation safe for children, pregnant women, or elderly individuals?

No safety data is currently available for butternut squash extract supplementation in children, pregnant women, or elderly populations, as published research has only involved animal models and laboratory testing. Whole butternut squash is generally recognized as safe as a food, but supplement extracts have not been evaluated for use in these vulnerable populations. Consultation with a healthcare provider is recommended before using butternut squash supplements in these groups.

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