American ginseng is believed to boost the immune system. Kwok didn't like it, associating the drink with tart Chinese medicine. But after Yeung returned to Hong Kong to help with his family's ...

Edmund Lui made ginseng the focus of his academic research and now he's sharing his passion for the herb at his London market ...

Common types include American ginseng, Asian ginseng, ashwagandha, eleuthero and rhodiola. Drinks that contain adaptogens ...