If you have been training more than, say 3 years, it doesn't matter, as you don't grow any muscle after that time. One may 'convince' oneself that they are gaining, but in reality they are not. Hence, whatever you eat/drink etc don't make one iota of difference. Of course you will always have the fantasists such as Kiwiol with his fantasy island 80 b continuous quality gains, but back in the land of reality, that don't happen.