University of Connecticut researchers indicate that Purslane (Portulaca oleraceae L.), “has been recently identified as an excellent source of alpha-linolenic acid.” Purslane also has been described to have “a higher nutritive value than other vegetables due to its omega-3 fatty acid, α-tocopherol, ascorbic acid, β-carotene and glutathione rich shoots.” Int. J. Mol. Sci. 2012, 13(8), 10257-10267.
Recipes from The NY Times include a mouthwatering purslane salad with cherries and olives. Hint: You can probably find it growing in your backyard; until recently it was treated as a mere “weed.”
Blanche Cybele Derby has a number of other videos on YouTube.