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Pea
Erbse · (Pisum sativum subsp. sativum)
Bean family (Fabaceae)
Description
Picked fresh from the pod, garden peas (Fabaceae) taste noticeably sweeter than shop-bought produce, since natural sugars convert rapidly into starch after harvest. Per 100 grams they provide meaningful amounts of vitamin C, folate, iron and fibre; dried, their protein content rises above 20 percent, which is why split peas have formed the basis of pea soup as one of Europe's oldest staple foods since Neolithic times. Pea protein isolate, extracted from the pressed seed, is now widely used as a plant-based alternative to whey protein. As a legume, the plant fixes atmospheric nitrogen via root-nodule bacteria and enriches soil when used as green manure. One clarification worth noting: contrary to an occasional mix-up, garden peas have nothing to do with the neurologically harmful grass pea (Lathyrus sativus). Flatulence-causing oligosaccharides may cause mild, harmless digestive gas in sensitive individuals.
🌿 Risk of confusion — read before wild-harvesting!
The confusion occasionally appears in popular sources and is factually incorrect.
Freshly picked garden peas are eaten raw straight from the pod — sweet, crisp, and nutrient-dense. Per 100 g, green peas provide approximately 5 g protein, 14 g carbohydrate, 5 g dietary fibre, vitamin C (40 mg, ~44 % DV), vitamin K (~25 µg), and folate (~65 µg). Natural sugars (sucrose, glucose) drop rapidly after harvest through enzymatic conversion — freshly picked peas are noticeably sweeter than supermarket produce.
Pea shoots (the tender growing tips and young leaves of the pea plant) are eaten raw in salads or as microgreens. They taste fresh and pea-like, and are rich in vitamin C and folate. Sprouts of germinated peas (pea microgreens, 7–14 days old) are a popular ingredient in Asian cuisine and modern cooking, also used as a garnish.
Fresh or frozen peas are steamed, boiled or added to stir-fries, risottos, pasta and soups. Dried split peas (yellow or green halves) form the base of classic pea soup — one of the oldest and most globally widespread folk dishes. Whole dried peas should be soaked for 8–12 hours before cooking and then simmered for at least 45–60 minutes; split peas require no soaking.
Pea protein isolate (PPI) is obtained by wet extraction from dried peas (protein content 80–90 %) and used in food technology as a plant-based alternative to soy protein — in protein shakes, meat substitutes, baked goods and pasta. The amino acid profile is complete but relatively low in methionine and cysteine; leucine content is good (relevant for muscle protein synthesis). Clinical studies show comparable satiety and muscle-building effects to whey protein with lower allergenicity.
The pods of sugar snap peas (mangetout) — a cultivar type within Pisum sativum — are eaten together with the seeds. They are especially tender and sweet when harvested young, and are suitable raw in salads or briefly blanched as a side dish. Sugar snap pods provide additional dietary fibre and vitamin C from the pod wall.
Dried peas have been a staple food since the Neolithic period across Europe, the Near East and India. They are inexpensive, long-lasting (1–3 years in dry, cool storage) and an important protein and calorie source in traditional subsistence cooking worldwide. Historically, pea porridge and pea soup formed the basis of peasant diets in central Europe alongside bread.
As a legume, the garden pea forms a symbiosis with nitrogen-fixing bacteria (Rhizobium leguminosarum), enriching the soil with biologically available nitrogen — in intercropping and crop rotation, subsequent crops (e.g. cereals, brassicas) benefit from a nitrogen input of up to 50–100 kg N/ha. As a green manure, the whole plant is incorporated into the soil after harvest. The pea is thus a key element of sustainable agriculture and permaculture design.
Garden peas (Pisum sativum) are very well tolerated by healthy people and rank among the safest food plants. Oligosaccharides (stachyose, raffinose) in the seed may cause mild flatulence and intestinal gas in sensitive individuals — this is normal and not a sign of intolerance. Soaking and discarding the cooking water reduces oligosaccharide content. CLARIFICATION ON LATHYRISM: Lathyrism is a neurological disease caused by excessive consumption of grass pea (Lathyrus sativus) — this plant is NOT Pisum sativum. Garden peas contain NO oxalyldiaminopropionic acid (ODAP/beta-BOAA) and are NOT associated with lathyrism. The confusion occasionally appears in popular sources and is factually incorrect.
Garden peas are safe in pregnancy and nutritionally valuable. The folate content (important for neural tube prevention) makes them a beneficial dietary addition in early pregnancy — though dietary intake alone is unlikely to meet the full requirement, and does not replace medically recommended folic acid supplementation.
Peas are safe during lactation. Oligosaccharide-related flatulence in the mother does not generally affect breastfed infants.
Cooked peas are suitable from weaning age (approximately 6 months) — as puree or softly cooked whole peas. Whole raw peas are a choking hazard for children under 3 and should be avoided. Pea microgreens and softly cooked snap peas are unproblematic for school-age children.
Drug interactions
Vitamin-K-Antagonisten (Cumarin-Antikoagulanzien, z. B. Warfarin, Phenprocoumon)
Peas contain vitamin K1 (phylloquinone, ~25 µg/100 g green peas). Consistently high pea intake could marginally affect the anticoagulant effect of coumarins. Not contraindicated — consistent intake and regular INR monitoring are sufficient.
Contraindications
- Known allergy to legumes (Fabaceae / Leguminosae), especially peanut, soy or pea allergy. Cross-reactions between different legumes are possible but not guaranteed.
- Gout: peas contain moderate amounts of purines (~70–80 mg/100 g). In acute gout or very high uric acid levels, high pea intake may marginally raise uric acid — individual medical advice recommended.
Harvested part: ripe or green seeds
- Time of day:
- Harvest in the early morning or morning hours before the day's heat — at this time pods are turgid and sugar content is at its peak. Shelling peas should be harvested when the pods are clearly filled but still bright green and not leathery — pressing the pod should reveal round, firm peas inside. Sugar snap and snow peas should be harvested while pods are flat and tender before the seeds form visibly. Regular harvesting (every 2–3 days) significantly extends the productive period, as the plant ceases production once seeds ripen.
- Drying:
- Process or freeze fresh peas as quickly as possible — sugar degradation by amylase/invertase activity begins immediately after harvest (measurable within 6 hours at room temperature). For dry seeds: allow pods to fully ripen and turn yellowish-brown (usually July–August for early varieties). Let pods ripen and dry in a dry, well-ventilated room — no dampness, as moisture is the enemy. Shell peas, then dry on plates or screens at max. 35 °C until fully rattling-dry. Store airtight in dark jars, shelf life 1–3 years.
- Storage:
- 24 months — Fresh peas: in the refrigerator up to 2–3 days in the pod (longer = sugar loss). Frozen (after 2 min blanching) up to 12 months. Dried peas: airtight, dark, cool — 1–3 years.
- Time of day:
- Pea shoots (growing tips) can be harvested continuously from the start of plant growth — best done in the morning. Cut the top 5–10 cm of growing shoots with 2–3 pairs of leaves and the tendril; the plant then sprouts laterally and can be harvested multiple times. Alternatively: microgreens from pea seeds in shallow trays on soil or substrate, sown densely, harvested at 7–14 days when 5–8 cm tall.
- Drying:
- Pea shoots are not suitable for drying — they quickly lose freshness and vitamin C. Cool immediately after harvest and consume within 1–2 days. Do not freeze (texture deteriorates markedly).
- Storage:
- In the refrigerator in a slightly damp cloth or container, max 1–2 days. Best consumed fresh.
- Protein (Leguminosen-Speicherproteine: Legumin, Vicilin, Convicilin)OtherContent: 5 % (frisch) / 23-25 % (getrocknet)Seed
Main storage proteins of the pea. The amino acid profile is complete (all 9 essential amino acids) but relatively low in sulphur-containing amino acids (methionine, cysteine). Leucine content is sufficient to stimulate muscle protein synthesis. Biological value approximately 60–65 (lower than egg or whey, higher than most cereals). Commercial PPI production by wet extraction achieves 80–90 % protein in the isolate.
- Stärke und resistente Stärke (Amylose / Amylopektin)PolysaccharideContent: 5-7 % (frisch) / 45-50 % (getrocknet)Seed
Peas contain a characteristically high amylose fraction (~35 % of total starch) for a legume, which retrograde after cooking and cooling as resistant starch (RS type 3). Resistant starch is fermented in the colon, acts as a prebiotic, lowers the glycaemic index (GI fresh peas ~51, cooked dried ~32-54) and promotes short-chain fatty acid (SCFA) production.
- Ballaststoffe (Cellulose, Hemicellulose, Pektin)PolysaccharideContent: 5-6 % (frisch) / 15-17 % (getrocknet)Seed
Mixture of insoluble (cellulose, hemicellulose) and soluble dietary fibre (pectin). Promotes gut health, slows gastric emptying, increases satiety and modulates postprandial blood glucose and insulin rise. Dietary fibre content is a key reason legumes are recommended in plant-based diets.
- Oligosaccharide (Raffinose, Stachyose)PolysaccharideContent: 1-3 % (getrocknet)Seed
Alpha-galactosidic oligosaccharides that cannot be hydrolysed by the human small intestine (lacking the relevant enzymes) and are fermented by colonic bacteria — producing CO2 and H2 (flatulence). Soaking and discarding the soaking water and prolonged cooking reduces their content. They act as prebiotics for the gut microbiome.
- Folat (Vitamin B9)VitaminContent: 65 µg/100 g (frisch) / ~274 µg/100 g (getrocknet, roh)Seed
Peas are one of the best plant-based folate sources. Folate is essential for DNA synthesis and cell division, particularly important in early pregnancy (neural tube prevention). 100 g fresh peas cover ~16 % of the daily requirement (400 µg adults, 550 µg pregnant women).
- Vitamin C (L-Ascorbinsäure)VitaminContent: 40 mg/100 g (frisch) / deutlich reduziert nach KochenSeed
Freshly picked green peas are a notable vitamin C source (~44 % DV per 100 g). Vitamin C content drops rapidly after harvest through enzymatic degradation and is significantly reduced by cooking or freezing. Fresh is clearly superior. Frozen produce blanched immediately before freezing retains more than fresh produce stored for days.
- Eisen (Fe) und Zink (Zn)MineralContent: 1,5 mg Fe / 1,2 mg Zn pro 100 g (frisch)Seed
Peas contain non-haem iron and zinc in respectable amounts for a vegetable. The bioavailability of non-haem iron from legumes is improved by concurrent vitamin C intake and reduced by phytates (phytic acid, ~0.5 % in dried peas). Soaking and cooking significantly reduces phytate content.
- Flavonoide und Phenolsäuren (Quercetin, Kaempferol, Protocatechusäure)FlavonoidContent: 50-150 mg Gesamtpolyphenole/100 g (frisch)Seed
Peas contain moderate amounts of polyphenolic compounds, mainly flavonols (quercetin, kaempferol glycosides) and phenolic acids (protocatechuic acid, caffeic acid). Concentration varies widely by cultivar and ripeness. Contribution to antioxidant capacity; clinical relevance at normal consumption amounts unclear.
- [1]MonographUSDA FoodData Central — Peas, green, raw (FDC ID 170420)(accessed: 2026-05-21)
- [2]MonographEFSA — Scientific Opinion on the safety of pea protein as a novel food ingredient (EFSA Journal 2021;19(7):6703)(accessed: 2026-05-21)
- [3]MonographPlants For A Future (PFAF) — Pisum sativum database entry(accessed: 2026-05-21)
- [4]WikipediaErbse (Wikipedia DE)(accessed: 2026-05-21)
- [5]WikipediaPea (Wikipedia EN)(accessed: 2026-05-21)
- [6]WikidataPisum sativum (Wikidata Q25369)(accessed: 2026-05-21)
🤝 Permaculture Partners
In your garden, this plant acts as:
✨ Best symbiotic partners
- 🌿 Cucumber Classic companion-planting partner.
- 🌿 Carrot Carrot loosens soil for the pea root.
- 🌿 Lettuce Classic companion-planting partner.
- 🌿 Spinach Classic companion-planting partner.
⚠️ Better not planted together
📦 Part of these planting sets:
Source: Helga und Margarete Langerhorst, Mein gesunder Naturgarten (eigene Kuration)