My mother is 78 and has just started a parasite cleanse. She wants to do Hulda Clark 's epson salt and grapefruit juice gall bladder cleanse when she finishes but she is on high blood pressure medication and is leary of doing it. One of her friends, who I might add, is not a doctor, told her the grapefruit juice is not good for her high blood pressure. Is there anything to that?