Butylated hydroxytoluene (BHT), also known as dibutylhydroxytoluene, is a lipophilic organic compound, chemically a derivative of phenol, that is useful for its antioxidant properties. European and U.S. regulations allow small amounts to be used as a food additive.
Like others have said, it depends... If you're doing sets of 8-12 reps with moderate weights, rest 60-90 seconds. if you're doing high weight low rep (3-5 reps), then rest 2 minutes And if you're doing real heavy stuff like squats, deadlifts, I'd recommend at least 3 minutes.
Lower Your Reps. Yes, there really is a rep range that builds the most muscle. Do no more than 20 sets per muscle group; closer to 12 is even better. Your reps should be between six and 12 per set for the most muscle growth, and your workouts should never last much longer than 45 minutes.