Ah I see where I wasn’t clear. That’s my bad. To clarify, I was wondering what the results would be if they added controls.

Something like: Group 1: 0 supplements + healthy diet + 12 hr fast

Group 2: pre-workout + healthy diet + 12 hr fast

Group 3: blueberries + healthy diet + 12 hr fast

Group 4-n: (same as 1-3 but vary fasting time and dosage to establish max/min recommendations).

I took a look back at some of the reference papers and there’s been several studies already on this particular supplement. I wouldn’t be surprised if someone else has already looked into my questions and I just haven’t come across it yet.

Pre-workout as in the supplement powder not as a reference to timing. Basically to compare it to other supplements.

And per my understanding they fasted overnight for a morning workout. I’m interested in the timing between ingestion and beginning the work. Does the benefit decrease with increasing time and if so how much - is 12, 8 or even 2 hours enough to see a noticeable decrease in effectiveness?

Good points. It would also be helpful to study whether it’s actually the blueberries or if eating anything healthy before a workout increases fat burn. Compare it to nothing, pre-workout, control doses.

In addition, I would love some future research into timing of the snack - whether delays between eating and beginning the work out matter.