Korean or Chinese ginseng and Siberian ginseng are the best known varieties. Both varieties help the body cope with stress, support energy metabolism, and support healthy blood sugar levels. They both also support mental health. Korean ginseng helps to support healthy blood cholesterol levels as well as supports reproductive health and immune health. For individuals with health conditions, ginseng should be avoided as some may experience side effects such as high blood pressure, insomnia, nervousness, skin problems or diarrhea.