NO IT IS NOT DECAF BUT I AM USING HEAVY CREME & SPLENDRA{AS SUGAR} I THINK THAT IS HOW YOU SPELL IT ,I AM EATING EVERYTHING ELSE IT SAYS IN THE BOOK , THIS IS MY 4TH DAY I AM GETTING BETTER WITH CRAVINGS, HOW LONG SHOULD IT TAKE TO SEE IF YOU ARE DOING IT RIGHT LIKE IN WEIGHT LOSS IS IT AFTER 7 OR 10 DAYS