What do you think are the health benefits of ginseng?

Ginseng is the popular food for Koreans which fotify the immune system. It is well known to decreases blood lipids, lowers cancer risks and reduces blood sugar because it contains high amount of saponin. It is sold in different forms there - fresh right after harvesting, white ginseng following 4 years of drying, and red ginseng after repeated steaming and drying. Especially, red ginseng has a different type there - gel and drinking type. It is the most popular gifts for parents in New years day and Chuseok. Many people still believe the effect of herbal medicine and folk remedy. Some people don\'t want to see a doctor, even though they are sick. If we have a cold, we usually drink herb tea, pear tea and ginger tea because it helps reducing symtoms. Ginseng is one of the major ingredients to make health food. However, I don\'t know if it is really good to maintain healthy body based on my experience. I have eaten it for a long time but nothing has changed haha