Last two or three minutes is the steroid talk, as usual, he avoids the meat of the issue. He claims he used mostly supplements and amino acids to elicit a steroid like effect, did not use much of anything illegal because he was afraid of how it would change his personality. He also claims he was on TRT for a while, but dropped it due to a perceived cancer risk.
Other things of note -
Claims to have taken in multiple 100's of capsules a day in the mid-late 70's. One example he gave was 70-80 caps a meal, eating 7 meals a day.
Diet was something like 1.25 gram of protein/lb, .5 grams of carbs/lb, didn't track fats, but didn't over indulge in them either.
Warns not to get fat or bulk in the off season.
