Pumpkin Seed

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Health Benefits:

Boost Immunity

Cardiovascular System

Redness in Skin

How to Roast Pumpkin Seeds

Roasted Pumpkin Seeds With Cinnamon, Sugar, & Coconut Oil

How to Roast Pumpkin Seeds - 3 Ways and Time Saving Tip

Constituents

Major constituents of the seed include a fixed oil (30–53%), phytosterols (1%) and terpenes. The main fatty acids found in the fixed oil are linoleic acid (35–68%) and oleic acid (15–48%). Squalene is a characteristic constituent and accumulates in the non-saponifiable fraction of the oil to a concentration of 39–46%. The primary phytosterols are Δ7-sterols including spinasterol, Δ-spinasterol, Δ7-avenasterol, Δ7-ergostenol and Δ7-stigmastenol, together with smaller amounts of Δ5-sterols (e.g. campesterol, stigmasterol, clerosterol and isofucosterol). Rare amino acids, including Δ-aminobutyric acid, ethylasparagine, citrulline and cucurbitine (3-aminocarboxypyrrolidine) are also found.

Nutritional and Lipid Composition Analysis of Pumpkin Seed (Cucurbita maxima Linn.) (https://www.longdom.org/open-access/nutritional-and-lipid-composition-analysis-of-pumpkin-seed-cucurbita-maxima-linn-2155-9600-1000374.pdf)

Effects

The efficacy of lipophilic pumpkin seed extracts or pumpkin seed oil for micturation complaints accompanying benign prostate hyperplasia or irritable bladder has been confirmed by several clinical and experimental studies. As well as amaroids (cucurbitacin), the drug contains delta-7- sterols, which are similar to the dihydrostesterone. Cucurbitacin has anthelmintic properties. Pumpkin is also antiphlogistic and antioxidative.

Tissue State Relevance

Pumpkin seeds (Cucurbita pepo) have one of the clearest tissue‑state signatures of any nutritive seed because their pharmacology is unusually well‑documented. The search results show strong anti‑inflammatory, antioxidant, hypoglycemic, cardioprotective, prostate‑supportive, and immune‑modulating actions.

Heat / Excitation — Strong Cooling & Modulating

Pumpkin seeds contain flavonoids, phenolic acids, vitamin E, carotenoids, and minerals like Zn, Cu, Mn, Fe, all of which reduce inflammatory excitation.

• Anti‑inflammatory activity is repeatedly documented webmd.com ijrpr.com.
• Antioxidants protect tissues from oxidative “heat” and irritation Wiley Online Library.

Tissue‑state interpretation:

Excellent for inflammatory heat, oxidative stress, irritated mucosa, and chronic inflammatory patterns.

Wind / Tension — Moderate Relevance

Pumpkin seeds reduce irritation‑driven tension through:

• Anti‑inflammatory modulation (reduces reactive “wind”) verywellhealth.com.
• Magnesium‑driven neuromuscular relaxation (smooths tension patterns) Wiley Online Library.

Interpretation:

Helpful when tension arises from inflammation, stress, or mineral deficiency.

Cold / Depression — Strong Counteraction

Pumpkin seeds support metabolic and cardiovascular tone:

• Improve heart function via magnesium, nitric oxide, and antioxidant activity webmd.com.
• Improve blood sugar regulation (hypoglycemic activity) verywellhealth.com.
• Provide high‑quality protein and essential fatty acids that counter metabolic depression Wiley Online Library.

Interpretation:

Excellent for cold/depressed metabolic states, low vitality, sluggish circulation, and endocrine depression.

Damp / Stagnation — Strong Relevance

Pumpkin seeds reduce damp stagnation through:

• Hypoglycemic effects (reducing metabolic dampness) verywellhealth.com.
• High fiber content supporting digestive movement and gut microbiome health Wiley Online Library.
• Lipid‑modulating phytosterols (reducing lipid stagnation) Wiley Online Library.

Interpretation:

Useful for digestive dampness, metabolic sluggishness, and lipid stagnation.

Damp‑Heat — Strong Relevance

Pumpkin seeds show:

• Anti‑inflammatory + antioxidant synergy (clears damp‑heat) ijrpr.com.
• Antimicrobial activity (reduces infectious damp‑heat) ijrpr.com.
• Prostate and bladder symptom reduction (classic damp‑heat presentations) webmd.com.

Interpretation:

Excellent for damp‑heat in the urinary tract, prostate, and metabolic tissues.

Dry / Atrophy — Moderate Relevance

Pumpkin seeds contain:

• Tocopherols (vitamin E) and carotenoids that protect atrophic tissues from oxidative damage ijrpr.com.
• Essential fatty acids that support tissue lubrication and repair Wiley Online Library.

Interpretation:

Supportive for atrophic tissues under oxidative stress, but not directly moistening.

Summary Table

Practical Herbalist Interpretation

Pumpkin seed = cooling‑modulating, anti‑inflammatory, metabolic‑supportive, damp‑heat clearing, nutritive seed.

Best for:

• Inflammatory heat
• Damp‑heat in urinary/prostate tissues
• Cold/depressed metabolism
• Digestive dampness
• Oxidative atrophy
• Stress‑linked tension patterns

Uses

Approved by Commission E

Irritable Bladder

Prostate Complaints

Pumpkin is used for irritable bladder, prevention and treatment of calcium oxalate kidney stones, micturition problems accompanying

The Physiomedical Dispensatory by William Cook, M.D., 1869

Properties and Uses: The seeds, deprived of their husk, may be beaten in a mortar with a small quantity of water; by which treatment they form a milky emulsion which is mucilaginous, oily, and sweet. This emulsion will act transiently but effectually on the kidneys, bladder, and urethra. It may be used in scalding urine and gonorrhea. It has also been pronounced an effective remedy against the tape-worm, killing this parasite outright. For this purpose, an ounce of the seeds are made into an emulsion with sugar, gum arabic, and water, in suitable quantities; and given upon an empty stomach several mornings in succession. If they do not act upon the bowels, they are followed by a brisk cathartic on the second and subsequent days. I have employed them several times without success; but in the hands of many physicians they are reported as having proven very reliable. The expressed oil, in doses of from twenty to sixty drops, is said to be even more effectual than the emulsion. It has been combined with the oil of male fern, and is said to be effectual in this connection.

Clinical pharmacology

_

_Benign Prostatic Hyperplasia

A 12-month randomized, placebo-controlled, multicenter study assessed the efficacy of a 92% ethanol extract of the seeds (15–25:1) in 476 men with benign prostatic hyperplasia stages I and II (mean age 63 years). The men were treated with two capsules (500 mg extract per capsule) of the extract (n = 233) or placebo (n = 243) for 12 months. One capsule of the active treatment contained 500 mg pumpkin seed extract (15–25:1, 92% ethanol w/w). The outcome measured was a change in the International Prostate Symptom Score (IPSS). The median baseline IPSS for the placebo group was 17.7 and that for the treatment group was 17.6. A mean reduction of the IPSS of 6.8 in the treatment group and 5.6 in the placebo group (p = 0.014) was reported. A decrease in the IPSS by > 5 points was reported in more patients in the treatment group than in the placebo group, 65% versus 54% (p = 0.021). Urological flow parameters, quality of life, residual urine, prostate volume and prostate-specific antigen remained unchanged in both groups.

In a 3-month open multicenter study involving 2245 patients with benign prostatic hyperplasia stages I and II according to Alken, the effects of a seed extract (15–25:1, 92% ethanol w/w) were assessed. Patients were treated with 1–2 capsules of the extract (500 mg per capsule). The results of this study demonstrated an improvement in the IPSS by 41.4% and in quality of life by 46.1%. Micturition (average number of times

patients urinated) decreased during the day from 6.7 to 4.8, and at night (nocturia) from 2.7 to 1.1.

In an open study involving 79 male patients with benign prostatic hyperplasia, treatment with the seed fixed oil (dose not specified) reduced the amount of residual urine and led to better bladder emptying and greater volume of emptying after 12 weeks of treatment.

In a 3-month multicentre open study involving 39 women and 19 men with irritable bladder, patients were treated with 6 g of the crude drug three times daily for 8 weeks. Subjective symptoms such as polyuria and nocturia improved in more than 80% of patients.

In a study in men, a mixture of Δ7-sterols, isolated from the crude drug, was administered to patients with benign prostatic hyperplasia. Patients received 90 mg of the mixture by the oral route on days 3 to 4 prior to

prostatectomy. A significant decrease in the level of dihydrotestosterone in the prostate tissue was observed (p < 0.05), as well as a significant decrease in serum acid phosphatase. Oral administration of 30.0 g of the seed to a single human volunteer decreased urine output, but increased urea and uric acid output over a 3-day period.

Toxicology

Intraperitoneal administration of an aqueous or aqueous alcoholic extract of the seeds to mice had a median lethal dose of > 5000 mg/kg bw.

Experimental pharmacology

Anti-androgenic activity

A supercritical carbon dioxide extract of the seeds (dose not stated) antagonized the development of the prostate gland when administered with testosterone in castrated rats.  A sterol mixture isolated from the seeds dose-dependently inhibited the binding of labelled dihydroxytestosterone to cultured human prostate fibroblasts. Following preincubation of one sample of the fibroblasts with 120 ng of sterol mixture and another with 240 ng of the mixture, dihydroxytestosterone binding was reduced from 68.3% to approximately 47% in the first sample and from 68.3% to 38% in the second.

Anthelminthic activity

A dried methanol extract of the seeds administered orally to mice, at a dose of 20.0 mg/kg body weight (bw), for 3–4 days had weak activity against Hymenolepis diminuta, inducing a 37% clearance of worms in 6 days . Cucurbitine (3-aminocarboxypyrrolidine) is reported to be one of the most actively anthelminthic constituents of the crude drug.

Anti-inflammatory activity

The anti-inflammatory effects of intragastric administration of the seed oil to rats with arthritis induced by Freund’s complete adjuvant, at a dose of 100 mg/kg bw , were compared with the effects of indometacin, a classical anti-inflammatory agent. Two models of inflammation were investigated. In the acute inflammatory phase model only seed oil was used, and in the chronic inflammatory phase model both seed oil and indometacin were used. Treatment with the seed oil normalized blood glutathione and serum N-acetyl-B-D-glucosaminidase levels, which were elevated in the acute phase of inflammation. Plasma total proteins and albumin, which were reduced during the chronic phase of inflammation, were increased after treatment. Liver glucose-6-phosphate dehydrogenase activity, which was markedly increased during the induction of inflammation, was also reduced after treatment. Also, a remarkable inhibition of paw edema was observed.

A similar pattern was noted following treatment with indometacin.Intragastric  administration of a supercritical carbon dioxide extract of the crude drug (dose not stated) reduced carrageenan- or dextran-induced edema in castrated rats.

Antischistosomal activity

Oral administration of 3.0 g of the seeds daily to mice for 28 days reduced the number of Schistosoma japonicumparasites.

Inhibition of 5a-reductase

The effect of an extract of the seeds on the activity of 5a-reductase, the enzyme responsible for the conversion of testosterone to dihydrotestosterone, was assessed in vitro in cultured human prostate fibroblasts The extract inhibited the activity of the enzyme with a median inhibitory concentration of 128 μg/ml. The affinity of the extract for the dihydrotestosterone receptors was very weak.

(WHO-VOL4 pg 86- 89)