should be fine. My Protein & Dolphin Nutrition sell it I believe.
Personally I would use BCAA’s for your workout (although you need to high dose for make it worth while) & then have real food.
I’m not sure what stage you are at, so if your in the early days it would make sense not to train, or at the very least not to train hard, however frustrating that is. I stopped for almost 2 months (& hated it, but I felt so tired at the time I had too).
Then only started 3 days per week, always with a days rest in between (if you have adrenal fatigue, its one of the suggestions).