Best ways to minimize muscle loss with High Intensity Cardio/Distance training
Hey guys, sorry if this has been addressed here as I may have missed some of the threads. I'm trying to figure out if what I've heard about both high intensity cardio and distance running on muscle loss is true, still questioning and breaking out of things I've read and been taught from various bodybuilding sites.
Anyways, I'm training for a marathon in November, and just got Daniels Running Formula. Since reading it, I've been doing some threshold training a few times a week to improve endurance, and some days of long distance running. Will both forms of running use muscle as fuel regardless of around workout nutrition? Will BCAA's really help minimize muscle loss? Sorry for a common question, I'd like to know the truth and it looks like people on here seem to know what they're talking about. Thanks.