That, my friends, is entirely up to you. I recommend consulting with a doc before jumping on any kind of serious CBD regimen, but I'd venture to say anywhere from 5-15mg at a time should do the trick without adverse consequences. As a general rule, think of edibles like salt - you can always add more, but you can't take it away. My recommendation would be to start slow and see how you feel. If you want more information on CBD dosage, check out this helpful article from Healthline.