KR Mixture CBD Bottom line, if you’re interested in CBD, you have to know the risks. Right now, there aren’t really many reported side effects of CBD in general. And, as for KR CBD Side Effects, there aren’t any reported ones for this formula. So, that’s a good sign. Of course, we’re all different. So, on the off chance it gives you a stomachache or something like that, stop taking it. Or, try taking it with food to alleviate that.