Pea

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.

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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.

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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.

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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.

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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.

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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.

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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.

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