Starting on Monday Ill begin cycling 15.5 miles 5 days a week at a 10 mph pace. Which equates to an 1.5 hours of moderate intensity cardio. My diet will slightly change from what it is currently. 5 meals a day of 400 cals. each,25-30 g protien, 40-50 g carbs. Diet will only be tuna,pollock,chicken breast,oatmeal,bannanas,potatoes,brown rice,lean ground beef 93/7,cottage cheese. Do you think i can retain muscle or should i add a supplement that is anbolic or increases protien synthesis. I'm 6' even 223 lbs. and 16% body fat. Also the only supp I take is creatine monohydrate.