I don't know of any defficiency that an abundance of purslane might indicate. Do you know that purslane is an excellent vegetable (reputably the favorite of Mahatma Ghandi.) It has also been reported to be the richest vegetable source of the fatty acid Omega # (the one also found in fish oils). Try it in a little olive oil, butter or ghee with garlic, of course. John Rowland R Farm You R what U eat. Weaverville, NC