yes sir they are..... i have a friend thats a personal trainer and he helps me out alot so im trying to get my bf down... i dont have a lot of weight but ive ate like a horse and worked out consistantly but never could get weight to stay .... runs in my family ... n e ways prior to taking roids i use to weight 129lbs and thats being nice to myself .... i worked out and ate all day like 8 meals a day but nothing but 5lbs in 8 months i even had a personal trainer so i did a cycle and have made some great gains about 12lbs i kept on and put on a little extra as i havent been in the gym (i travel for work) at the time i was a solid 147lbs and 12%BF ....