Safety and tolerability of Korean Red Ginseng in healthy adults: a multicenter, double-blind, randomized, placebo-controlled trial.

Background: Korean Red Ginseng (KRG) has been used in Asia for its various biological effects, but no studies have investigated the safety of its long-term intake. Therefore, the present study evaluated the safety of KRG intake for 24 weeks.

Methods: We randomized 1,000 participants in a 1:1 ratio into two groups, which were treated daily with 2 g of KRG or a placebo for 24 weeks.