#134 of 138 in Vegetable · scored 70/100
Purslane is a succulent leafy green with exceptional micronutrient density and the highest plant-based source of omega-3 fatty acids (ALA). At just 20 calories per 100g, it delivers potassium, magnesium, iron, and vitamin C with minimal carbohydrates.
Representative amounts for this food, not measured for this item. Real content varies widely by variety, ripeness and storage.
These are the scored components, not a sum: the published score also reflects normalisation across the catalog, so the parts above will not add to 70.
Less a 3.0 anti-nutrient penalty (high oxalates, moderate sodium).
Purslane (Portulaca oleracea) is a traditional Mediterranean and Asian green that has been cultivated for thousands of years as both food and medicine. Despite its humble appearance and availability as a common garden weed, purslane stands out nutritionally for containing 300-400mg of alpha-linolenic acid (ALA) per 100g—rivaling flaxseeds on a per-gram basis. This makes it a rare plant-based source of omega-3 fatty acids without the need for seeds or supplements. Beyond ALA, purslane delivers exceptional levels of potassium (494mg/100g), which supports cardiovascular regulation and electrolyte balance. The green also contains significant iron and vitamin C together, maximizing iron bioavailability through natural synergy. Purslane's stems and leaves contain betalains and other polyphenols with antioxidant properties. The high water content (92%) combined with minimal calories makes purslane ideal for weight management while supporting micronutrient status. Emerging research suggests purslane's omega-3 content and polyphenols may benefit glucose metabolism and inflammation markers, making it particularly relevant for longevity-focused nutrition strategies focused on metabolic health.
High potassium content (494mg/100g) helps counterbalance sodium intake and supports vasodilation, reducing arterial stiffness and improving endothelial function
Purslane contains 300-400mg ALA per 100g, which converts to EPA/DHA in the body and reduces inflammatory signaling pathways relevant to chronic disease
Purslane provides 1.99mg iron per 100g alongside 21mg vitamin C, which significantly increases non-heme iron absorption through pH reduction and chelation
Polyphenols and betalains in purslane demonstrate antioxidant activity that may improve insulin sensitivity and reduce postprandial glucose spikes
At 68mg per 100g, purslane contributes meaningful magnesium intake supporting ATP production, muscle relaxation, and nervous system regulation
Purslane is nutrient-dense and calorie-sparse with no stimulating compounds, making it suitable for any meal. Iron absorption benefits from consumption with vitamin C throughout the day. Including it at midday or with lunch optimizes iron absorption when stomach acid is naturally elevated.
Fasting-compatible
Purslane is compatible with intermittent fasting due to negligible calories. Its oxalate content (moderate) is not concerning for most populations but individuals with kidney stones or hyperoxaluria should monitor intake.