Purslane, "A Nutrient Rich Weed"

"Purslane may be a common plant, but it is uncommonly good for you. It tops the list of plants high in vitamin E and an essential omega-3 fatty acid called alpha-linolenic acid (ALA). Purslane provides six times more vitamin E than spinach and seven times more beta carotene than carrots. It’s also rich in vitamin C, magnesium, riboflavin, potassium and phosphorus.
Omega-3s are a class of polyunsaturated essential fatty acids. Your body cannot manufacture essential fatty acids, so you must get them from food. Unfortunately, the typical American diet contains too few omega-3s, a shortage that is linked to a barrage of illnesses including heart disease, cancer and Alzheimer’s disease."

"ALA is most commonly found in plants and grass-fed meat and eggs. Artemis Simopoulos, co-author of The Omega Diet, says purslane is one of the richest known plant sources of ALA: It contains 15 times the amount found in most iceberg lettuce."

"In addition to ALA, other omega-3s include eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids mostly found in aquatic plants and animals, especially oily fish. Nutritionists now think all forms of omega-3s need to be plentiful in our diets pants such as purslane may be part of the missing link to better nutrition. Ethnobiologists — scientists who study the relation between primitive human societies and the plants in their environment — believe that the plants humans ate long ago provided a greater proportion of nutrients than the plants we consume today." 

Read more: http://www.motherearthnews.com/organic-gardening/power-packed-purslane-zmaz05amzsel.aspx#ixzz37NLQ0SjD