entha oil cooking ku use pannalam .... pls give a valuable suggestion low cholestrol and good taste

Nallennaiku minjinadhu edhuvum ila , adhu costly so sunflower oil, irandum use pannalam. Endha oil yum continuous aa use panna vendamnu doctor advive, so change every 2 months..ricebran nalladu, but namma main food rice, so adhu thevaiilla.....