Why should they be taken without other supplements? Absorption issues? And how long should the time interval be, regarding other supplements?
We get these two amino acids, but instead of NAC, it’s l-cysteine, from meat and other foods. For some reason, getting it from those sources makes it unavailable to benefit us the same way, or everyone would stay young from just eating meat and dairy, in my humble opinion.
Try it all together if you want. The participants had their GlyNAC dose at prescribed times, by itself, to my understanding, as part of the study, but it might work, otherwise.
I’d give it at least a half hour. That’s what I do.
Some they say works best by themselves on an empty stomach with water.
Some do better taken with a meal.
I would suspect the empty stomach w/water ones are water soluble, and the ones taken with a meal are fat soluble.