Does anyone know if having AM coffee with supplements has any effects on their absorption and therefore their potency and benefit.

Im Interested in this subject aswell. I recently switched to doing A.M. workouts on an empty stomach. I have read [in this forum] that drinking a cup of coffee 1s thing may prevent muscle wasting? I had cut coffee out completely for awhile but have now added it back as a performance enhancing drug..lol Oh well didnt think I would make the Olympics anyway.

Depends on the supplements ... caffeine depletes Vitamin B1, inositol, biotin, potassium, and zinc.

Caffeine inhibits calcium and iron assimilation, as well as vitamin K and niacin.

Other than that, enjoy all of the perfomance enhancing and fat-burning effects of caffeine.