RNA, or ribonucleic acid, is a base component involved in many functions in cells, including protein synthesis. It is used as a supplement clinically and in sports nutrition. The theory behind it is that it helps to support the immune system during times of metabolic stress. There is excellent data of its benefits in improving clinical outcome in critically ill patients (Khun et al 1995; Kemen et al 1995; Atkinson et al 1998; Heys et al 1999), but little as to its uses in weight training stress.
I have a feeling that RNA supplementation may have a place in bodybuilding, and some MRPs contain it, but much more research is needed.
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Bodybuilding requires commitment. It is a totally different lifestyle that entails letting go of old habits and adopting new ones. You cannot go into bodybuilding and be half- hearted about it. It is a test of strength, self-discipline and willpower. Start only when you are sure you can commit time, effort and energy. Learn tips like this one and 99 more.