These show that there is no overall increased risk of cancer from treatment with radioactive iodine. The small dose of radioactivity used means that radioactive iodine treatment is in no way like the radiation exposure following uncontrolled nuclear fallout which can cause thyroid cancer.
BCAAs reduce muscle soreness after intense exercise. BCAAs aid in post-workout recovery. by Jeff S. Volek, Ph.D., R.D. The branched-chain amino acids (BCAAs) leucine, isoleucine and valine have an important role in several aspects of recovery and may well be the most important of all the amino acids for athletes.
By the way, you will still lose fat faster from the upper body, but this will help even things out a bit. If you have trouble exercising fasted, due to lack of intensity or fatigue, try coffee and/or BCAA supplements about 30 to 15 minutes before the workout.