New study debunks garlic pills' cholesterol-busting effect, but herb blend for menopause may cool hot flashes. Plants harboring substances that are potent enough to heal may also harm. Herbal supplements may interfere with prescription drugs. No guarantee that what's on the label is in the bottle. Consult physician before trying.
More extreme claims are that it can cure diabetes, cancer and heart disease.
A recent published review of 199 separate trials appeared to find some effectiveness beyond placebo-but not for any particular disorder. No sound explanation for how small dosages affect the body. Remedies considered harmless. The danger is using them instead of effective standard medicine for serious disease. Inducing a trancelike state to foster healing, presumably to bypass the meddlesome concious mind.