Whey Protien Isolate is not that great, actually. Or at least it has a very specific function. Whey Protien Isolate burns up very quickly, it's good for post-workout when your body needs a shot of protien that it can absorb quickly. However other forms of protien like casine, for example, mixed with a healthy dose of carbs and good fats help slow down the digestion, which is much better during the day and late at night when going catabolic becomes more of a danger.
Says he's also using Aussie Brand products. That stuff tastes awesome and it's extremely expensive.