ANSWER: First of all, you don't HAVE to take steroids to compete. There are many contests for natural athletes out there. However, if you're sure you're doing this for YOU and not to appease your trainer, then I would say that Anavar is probably the mildest and the safest drug to start with. It was actually originally prescribed for the treatment of osteoporosis and it has a very low androgenic index. You'll also experience more strength gains than actual weight gains. This will lead to a tighter more muscular defined "look". As with any drug, start with a low dose to see how you respond and don't rush into increasing the dose until you're sure your system can handle it. I'd say start with 5 to 10mg/day. Anavar doesn't convert to estrogen and has a minimal effect on natural hormone production. However, you must still look out for virilizing side effects such as deepening or hoarseness of the voice, increased body hair, and increased acne.