Necessary:

Protein Whey
BCAA Amino Acid Energy
Creatine Monohydrate

Optional:
Testosterone Booster
Nitric Oxide Booster
DIM Estrogen Blocker
HMB (Beta-hydroxy-beta-methylbutyrate)
CLA (Conjugated linoleic acid)
Omega 3 Fish Oil
ZMA ( zinc, magnesium aspartate, and vitamin B6)
Beta-Ecdysterone
MSM (Methylsulfonylmethane)
Multivitamin
Fiber or Probiotics