do the formulas work? ive heard of 40/40/20, 50/25/25. 50/30/20. which works best? im looking to losing 39 lbs by may 31 currently at 197, if anyone can help id apreciate it. i was looking at johns food logs and on this same day he was 4 lbs lighter then me so i feel that i wanna switch now to something like johns program when he was fat loss. been dieting now for 3 months but because of all the mistakes i made i only lost 30 lbs. stats: 16 years old, 197.6 lbs, 5'5"