Hey there guys, just a bit of back ground info first as this is why I'm REALLY confused on what's going on with my body! A couple of years ago I was only lifting weights and nothing else, the occasional jog around the block (literally), but I was predominantly weight lifting and eating almost anything I wanted and heavy drinking, on the weekends. I actually was losing fat and gaining muscle with this life style. My diet would consist of just tuna, chicken, steak, vegies, rotate. I was also working ridiculous hours and my body clock was wayyyyyyy out of whack, i.e. I had uni 9am to say about 6pm five days a week, and I would have work that starts at 11pm and finished at 4am, five days a week. I barely frichen slept! I remember this was one of the hardest times for me as a kid growing up! NOW! Add a couple of years to that, I gained a heap load of weight so I decided to take up Muay Thai. After a week of doing Muay Thai I was like, "pfft, stuff weights, let's just focus on Muay Thai and cardio". ...so I signed myself up to City to Surf (a sort of 14km marathon that starts from the city centre all the way outwards to Bondi beach in Sydney) and as it got closer I was actually running a lot more on a session (I was doing 8k's minimum a session). I was also doing weight lifting, but nothing extreme anymore, mostly upper body workouts where I thought would help me in my Muay Thai. I was also doing Muay Thai 3 days a week, each 2 hour sessions. My diet consisted and is currently something along the lines of this: Mornin (6am) - Oatmeal with drop of honey, with casein protein mixed with mater 10am - a banana 11am - an apple 1230am - a 6inch subway sandwhich which double fillet chicken boobies, no dressing, salads, no cookie and waster. 3pm - an apple 6pm - 8pm - Run/Muay Thai/Gym depending on the day Immediate post workout protein drink mixed with water 930pm - Small piece of rump steak, handful of vegies Right before bed 11pm - Casein Protein mixed with water the question is, I'm obviously doing a lot more rigorous training than I was years ago, how come my body is burning away all my muscles and not so much my fat? I'm saying this because I remember years ago all I did was lift weights and the fat on my belly shrunk and I remember the fat on my stomache formed in a shape of a donut! (which means small amount of fat!) but now, I'm doing shitloads of cardio, i've never done this much running and training in my life, yet my body is burning all my muscles and keeping my fat!? What do I have to do in my diet?!?! Could someone please help! I'm going to start trying to stop running as much as it's really starting to hurt my achilles and switch it for sprints, 2 times a week. I did my second sprint session last week and everything in my body hurt! Even my biceps (I know, wtf?). Any help would be appreciated guys!