Some people say that it takes 1500mg per day to control their appetites. Some say 3000mg is necessary. Some manufactures of hoodia supplements recommend two capsules three times a day, while more potent hoodia products recommend one capsule three times a day and some two capsules twice a day. People have experimented with their own hoodia dosage, basically using themselves as guinea pigs and this may be okay if the product is 100% hoodia gordonii. But, it is wise to follow the manufacturer