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Purslane (Portulaca oleracea) is a wild edible green that contains the highest plant-based omega-3 (ALA) content of any commonly eaten leafy vegetable, alongside vitamins A and C, magnesium, potassium, and iron.

An overlooked green with surprising depth

Purslane is a low-growing succulent with paddle-shaped leaves and reddish stems, eaten as a vegetable across the Mediterranean, the Middle East, India, and parts of Asia. Often dismissed as a garden weed, it is one of the most nutrient-dense leafy greens on record, rich in plant-based omega-3, naturally high in vitamins A and C, and a generous source of magnesium, potassium, and iron.

What's inside 100 g of fresh purslane

Reported values from USDA data and published analyses. All figures are per 100 g of fresh leaves and stems.

It also supplies B-complex vitamins (riboflavin, niacin, B6) and smaller amounts of copper, manganese, zinc, phosphorus, and selenium, making it one of the most mineral-dense leafy greens available.

The richest leafy source of omega-3

Purslane's standout feature is its alpha-linolenic acid (ALA), an essential omega-3 the body cannot produce. A 100 g serving provides roughly 300-400 mg of ALA, with cultivated samples measuring up to seven times more than spinach.

How it compares to other green omega-3 sources (g per 100 g):

Unusually for a plant, purslane also carries small amounts of long-chain omega-3s (EPA, with traces of DPA and DHA), making it a valuable green source for cardiovascular and immune health on a plant-based diet.

A natural antioxidant package

Purslane leaves carry compounds that help the body manage oxidative stress , a key factor in chronic inflammation, vascular disease, and ageing.

In comparable studies, purslane outperformed spinach for alpha-tocopherol, vitamin C, and glutathione. The leaves also contain melatonin and phenolic compounds, which together appear to support the body's own antioxidant defences.

Centuries of traditional use

Purslane was part of the Roman diet and is documented across Middle Eastern, North African, Indian, and Chinese food traditions. In traditional Chinese medicine (ma chi xian) it has been used as a tonic and to support healthy blood pressure and blood sugar.

Folk medicine systems have applied it to soothe burns and minor wounds, ease headaches, support digestion, and as a gentle diuretic. Modern research is gradually exploring its anti-inflammatory, wound-healing, and antimicrobial activity, along with its potential role in metabolic health.

Bringing purslane into everyday meals

The whole plant is edible, leaves, soft stems, flower buds, and seeds, with a mildly tangy, lemony flavour and a succulent crunch.

• Toss raw leaves and tender stems into mixed salads with tomato, cucumber, and a lemon-olive oil dressing.
• Blend into a tahini or cashew dip with garlic, lemon, and herbs to serve with flatbread.
• Wilt briefly into soups, stews, or lentil dishes in the final minute of cooking to keep the texture.
• Stir through cooked grains such as quinoa, freekeh, or bulgur, along with olive oil and herbs.
• Blend a handful into green smoothies for a mineral and omega-3 boost.
• Pickle the stems lightly in vinegar with garlic and chilli for a zesty condiment.

A few things to keep in mind

If foraging, harvest only from areas free of pesticides and roadside pollution. Confirm identification: spurge, a toxic look-alike, has thinner stems and a milky sap when broken, while purslane has thick reddish stems and clear sap.

As with any food that influences blood sugar or blood pressure, those on related medications or with existing kidney concerns should check with their healthcare provider before adding it regularly to the diet.

Summary based on a peer-reviewed review by Uddin et al., published in The Scientific World Journal (2014): "Purslane Weed (Portulaca oleracea): A Prospective Plant Source of Nutrition, Omega-3 Fatty Acid, and Antioxidant Attributes". This is general nutritional information, not personal medical advice.

Rocket, also called arugula (Eruca sativa and Diplotaxis tenuifolia), is a peppery Brassicaceae leaf rich in vitamin K, vitamin C, folate, calcium, and the glucosinolate-derived isothiocyanates that give cruciferous vegetables their studied health benefits.

A Mediterranean staple with real depth

Rocket, also known as arugula, rucola, or roquette, is a peppery green leaf in the Brassicaceae (cabbage) family. Two species share the name: cultivated rocket (Eruca sativa) with broader, milder leaves, and wild rocket (Diplotaxis tenuifolia) with finer, more deeply lobed leaves and a sharper, more bitter bite.

Beyond flavour, rocket is a meaningful source of vitamin C, vitamin K, folate, and calcium, and carries a distinctive set of plant compounds, flavonoids (quercetin, kaempferol, isorhamnetin), carotenoids, and ascorbic acid , that are studied for their antioxidant and anti-inflammatory effects.

What's inside 100 g of fresh rocket

Reported values from USDA data and published analyses. All figures are per 100 g of fresh leaves.

Rocket also supplies useful amounts of beta-carotene, lutein, zeaxanthin, and the B-vitamins (riboflavin, B6, pantothenic acid), alongside dietary nitrates that are studied for their role in vascular function and blood pressure regulation.

A flavonoid-rich green

Rocket leaves contain a distinctive blend of phenolic compounds, mainly flavonols (kaempferol, quercetin, isorhamnetin, rutin) and phenolic acids (caffeic acid, gallic acid). In wild rocket (Diplotaxis tenuifolia), kaempferol is typically the dominant flavonol, while Eruca sativa tends to be relatively richer in quercetin derivatives.

Peak phenolic content reported in the literature (mg per 100 g of dried leaves, wild rocket grown under different greenhouse films, values vary widely with growing conditions):

These compounds are linked in the wider literature to antioxidant, anti-inflammatory, antimicrobial, cardioprotective, and antidiabetic activity. Isorhamnetin, a methylated form of quercetin, is especially well absorbed and is studied for antiplatelet and anticoagulant effects.

A built-in antioxidant package

Rocket leaves carry a rich combination of antioxidants, ascorbic acid (vitamin C), carotenoids, chlorophylls, and phenolic compounds, that together help the body manage oxidative stress.

In wild rocket grown under research conditions, ascorbic acid was the most abundant antioxidant, reaching up to ~1200 mg per 100 g of dried leaves. Total carotenoids ranged from roughly 70 to 260 mg per 100 g D.W., and total phenolics from around 320 to 590 mg GAE per 100 g D.W., with antioxidant activity (ABTS) measured between roughly 1300 and 2500 mg Trolox-equivalent per 100 g D.W.

Together, these compounds are associated with reduced oxidative stress and a lower risk of chronic conditions linked to inflammation, including cardiovascular disease and certain cancers.

Centuries of culinary and folk use

Rocket has been cultivated and eaten across the Mediterranean basin since Roman times, both as a fresh salad green and as a seed used for oil and flavouring. It features prominently in Italian, Greek, Levantine, and North African kitchens.

In traditional medicine systems, including Greco-Arabic and Ayurvedic practice, Eruca sativa has been used as a digestive stimulant, gentle diuretic, and tonic, with its seeds applied externally for skin concerns. Modern phytochemistry highlights its glucosinolates (precursors to the same protective isothiocyanates found in broccoli and watercress), along with its flavonoid content, as the active basis for many of these traditional uses.

Bringing rocket into everyday meals

The whole leaf is eaten, raw or lightly wilted, and the flowers and seeds are also edible.

• Toss raw leaves into salads with tomato, shaved fennel, and a lemon-olive oil dressing.
• Pile a generous handful onto wholegrain pasta or pizza in the final minute, so the heat just softens the leaves.
• Blend into a pesto with walnuts or almonds, garlic, lemon zest, and olive oil, in place of basil.
• Layer through grain bowls (freekeh, quinoa, farro) with roasted vegetables and chickpeas.
• Fold into omelettes, frittatas, or savoury wraps for a peppery lift.
• Use the small white flowers as an edible garnish for salads and crudités.

Pair rocket with a fat source, olive oil, tahini, avocado, or nuts , to help absorb its fat-soluble vitamins (A, K) and carotenoids.

A few things to keep in mind

Rocket also accumulates dietary nitrates from the soil , broadly considered helpful for vascular health at usual food intakes, but worth noting for very young children and anyone advised to limit nitrate-rich foods.

As a Brassica, rocket contains glucosinolates that can interact with thyroid function in very large, sustained intakes, not a concern at normal culinary servings, especially when iodine intake is adequate.

If foraging wild rocket, harvest only from areas free of pesticides, vehicle exhaust, and other contamination, and rinse leaves well before eating.

Bioactive compound and antioxidant data summarised from a peer-reviewed study by Romano et al., published in Foods (2022): "Bioactive Compounds and Antioxidant Properties of Wild Rocket (Diplotaxis tenuifolia L.)". Standard nutrient figures are drawn from USDA food composition data. This is general nutritional information, not personal medical advice.

Cinnamon (Cinnamomum verum and Cinnamomum cassia) is the dried inner bark of evergreen Lauraceae trees, valued for its cinnamaldehyde and procyanidin content, ranked the highest of 26 spices for antioxidant capacity, and studied for blood-sugar support, antimicrobial action, and anti-inflammatory effects.

One of the most studied spices in traditional and modern medicine

Cinnamon is the dried inner bark of evergreen trees in the genus Cinnamomum (family Lauraceae). Two species dominate global use: Ceylon cinnamon (C. zeylanicum), the soft, layered "true cinnamon" from Sri Lanka, and Cassia cinnamon (C. cassia), a stronger, redder bark from China and Indonesia that makes up most of what is sold as ground cinnamon worldwide.

The warm, sweet character comes from cinnamaldehyde, the dominant compound in the essential oil of the bark. Alongside it sit eugenol, cinnamic acid, procyanidins, catechins and a small group of polyphenols (rutin, catechin, quercetin, kaempferol, isorhamnetin) that together give cinnamon its strong antioxidant, antimicrobial and blood-sugar-supporting reputation in the literature.

What a teaspoon (and 100 g) of ground cinnamon delivers

Values from USDA FoodData Central. Per 100 g of ground cinnamon, with the practical per-teaspoon (~2.6 g) amount in context.

In daily cooking, cinnamon is used in spice-sized amounts (1-6 g per day), so you do not get a meaningful share of energy or protein from it. The real value sits in its polyphenols and essential oils: a single teaspoon still contributes a measurable dose of manganese, fibre and cinnamaldehyde to a meal.

The chemistry behind the warmth

The bark essential oil is dominated by cinnamaldehyde, with smaller fractions of eugenol, cinnamic acid, cinnamyl acetate, linalool, caryophyllene and related terpenes. The proportions shift between species and plant parts:

Approximate composition reported in the literature (Vangalapati et al., 2012):

Cinnamon bark also carries a notable load of procyanidins (A-type and B-type proanthocyanidins) and catechins, plus smaller amounts of rutin, quercetin, kaempferol and isorhamnetin. These are the molecules that drive most of cinnamon's measurable antioxidant and insulin-sensitising effects in laboratory studies.

Among the most antioxidant-dense culinary spices

In a comparative study of 26 spices, cinnamon ranked at the top for total antioxidant capacity (Shan et al., 2005). The activity comes from a stack of mechanisms working together: free-radical scavenging by cinnamaldehyde and eugenol, hydroxyl-radical quenching by procyanidins, inhibition of lipid peroxidation, and support for the body's own antioxidant enzymes (SOD, glutathione).

The same procyanidins also act as reactive carbonyl scavengers, helping to slow the formation of advanced glycation end products (AGEs) that contribute to vascular ageing and diabetic complications.

Centuries of culinary and medicinal use

Cinnamon has been traded across the ancient world for over 4,000 years, valued in Egypt, Greece, Rome, China, India and the Arab world for both its fragrance and its medicine. Traditional Chinese medicine (rou gui, gui zhi) uses it as a warming herb for circulation, digestion and women's health. Ayurveda and Unani traditions use it for digestion, breath freshening and respiratory complaints.

The same paper this card draws on summarises traditional uses of cinnamon as a coagulant, a digestive tonic, an oral-health remedy (toothache, bad breath, dental microbiota), and a warming spice that improves circulation. Modern research has begun to explain many of these uses through cinnamaldehyde, eugenol and the bark procyanidins.

Bringing cinnamon into everyday meals

Both ground cinnamon and whole sticks (quills) are useful, they behave a little differently. Ground cinnamon releases flavour fast; sticks infuse slowly and give a cleaner finish.

• Stir half a teaspoon into oats, yoghurt or chia pudding to slow the meal's glycaemic curve.
• Add a stick when simmering lentils, chickpeas, tomato sauces or stews, classic in Levantine, Persian and North African cooking.
• Pair with apples, pears, sweet potato, carrots and pumpkin to deepen natural sweetness without added sugar.
• Use in spice blends: ras el hanout, baharat, garam masala, Mexican mole and mulled-wine mixes all feature cinnamon.
• Brew a stick in hot water with ginger and lemon as a calming after-dinner tea.
• Combine with cocoa, cardamom or coffee, the warmth amplifies all three.

For everyday cooking, prefer Ceylon cinnamon (C. zeylanicum) when you can find it. It is lighter, sweeter, and contains far less coumarin than the cassia cinnamon that fills most supermarket jars.

Things worth keeping in mind

Cinnamon may modestly lower blood glucose and interact with diabetes medications. People taking insulin or oral hypoglycaemics, blood thinners, or undergoing surgery should mention regular cinnamon use to their doctor.

Whole cinnamon powder is a known choking hazard, the "cinnamon challenge" of swallowing a spoonful dry can cause aspiration and lung irritation. Always use cinnamon as part of a food or drink, not on its own.

Pregnant and breastfeeding women can safely use cinnamon as a culinary spice. Concentrated cinnamon supplements or essential oils are a different story and should only be used with professional guidance.

Summary based on a peer-reviewed review by Rao & Gan, published in Evidence-Based Complementary and Alternative Medicine (2014): "Cinnamon: A Multifaceted Medicinal Plant". Standard nutrient values from USDA FoodData Central. This is general nutritional information, not personal medical advice.