I think garlic can reduce our bp, cholesterol and weight.
Ginger is a best medicine for cough and cold. Dried ginger, if made coffee with karipetti and pepper (i don't know its English name...looks similar to jaggaery), is very good for cold, cough and fever
Garlic is supposed to be very good for reducing cholesterol levels ,of course this is a known fact ...it is also a natural antibiotic , supposed to be as effective as pencillin...