When taking the recommended dosage of 7.5 -15 grams of PGX per day, (2.5 – 5 grams 3 times per day – Note, PGX Meal Replacement Drink mix contains 4 – 5 g of PGX and PGX SatisFastTM drink mix contains 2.5 g of PGX) you should begin to see a decrease in appetite and cravings.