The herbs listed by the National Kidney Foundation as having negative side effects on the renal system included alfalfa, aloe, bayberry, broom, buckthorn, capsicum, cascara, dandelion, ginger, ginseng, horsetail, licorice, ma huang, nettle, noni, pokeroot, rhubarb, senna, wormwood and yohimbe.Jun 16, 2013
