Many creatine distributors, health forums, etc. recommend avoiding mixing creatine with citrus juices, as supposedly the citric acid could combine with the creatine to produce creatinine, which isn't a useful substance for strength training and bodybuilding.
However, it occurs to me that stomach acid is stronger and more acidic than any juice that one is likely to drink.
So, is there something specific about citric acid and creatine that would not apply to stomach acid, or is the creatine/citrus warning a myth?