Reading up on fasting and working out.

How to Implement Fasting | Mark's Daily Apple

Says in the Leangains part that if you work out in a fasted state, you should take BCAA's.

"you have the option of consuming 10 grams of branched chain amino acids 10 minutes before the workout."

I bought a bottle of Amino Acids today and it says to take 2, 3 times a day. If I'm doing the fasting, should I just take them before I work out as stated?

Thank in advance.