Purslane

A succulent weed growing in sidewalk cracks across the world, purslane is the richest leafy vegetable source of omega-3 fatty acids -- and one of the few land plants that contains preformed EPA. Most people walk past it. Mediterranean and Turkish cooks know better.

Why It Matters for Longevity

Purslane contains 300-400 mg of alpha-linolenic acid (ALA) per 100g, more than any other leafy vegetable (Simopoulos et al., 1992, PMID 1354255). It uniquely also contains some preformed EPA, normally found only in marine sources. Beyond omega-3s, it holds the highest melatonin content of any vegetable tested (up to 12 mcg/100g), significant glutathione (the master intracellular antioxidant), and notable beta-carotene (1320 mcg/100g -- more than many cultivated salad greens).

Purslane extracts reduced TNF-alpha and IL-6 in cell models (Zhou et al., 2015, PMID 26090578), with the omega-3 and polyphenol content working synergistically. Uddin et al. (2014, PMID 25181313) documented its anti-inflammatory, neuroprotective, and anti-diabetic properties.

How to Use It

Eat raw in salads for maximum nutrient retention -- the slightly sour, lemony flavor pairs naturally with tomatoes and cucumber. In Turkey, purslane salad with yogurt (yogurtlu semizotu) is a summer staple. The succulent leaves and crunchy stems also work in Georgian-style pkhali with walnuts. Cooked, it becomes mucilaginous -- useful as a thickener in soups.

What to Pair It With

Flavor Profile

Slightly sour, salty, and lemony with a peppery finish. Mild fresh aroma. Succulent fleshy leaves with crunchy stems -- a satisfying contrast of textures.

The Science

Simopoulos (1992, PMID 1354255) established purslane as the omega-3 champion of leafy greens. Uddin et al. (2014, PMID 25181313) provided the comprehensive review of its melatonin, glutathione, and beta-carotene content. The anti-inflammatory mechanisms were confirmed by Zhou et al. (2015, PMID 26090578).

Key Nutrients