Sweet Apricot Seed (南杏仁, Nán Xìng Rén) is the large, sweet-tasting seed kernel of the southern variety of Prunus armeniaca. Unlike the bitter northern apricot seed (北杏仁, Běi Xìng Rén), the southern variety is lower in amygdalin, making it safe for use in larger quantities, in foods, and by children. With a sweet, slightly warm nature, it gently moistens the Lungs, stops cough, and lubricates the intestines.
Nán Xìng Rén is a staple of Cantonese cooking and herbal soup culture, where it is routinely combined with Běi Xìng Rén in the classic ratio of 3:1 (South:North) to balance moistening action with descending cough-relieving power. It is particularly well suited to dry coughs, coughs in the elderly, and constipation from intestinal dryness. In everyday cuisine, it forms the base of almond paste desserts and restorative soups.