My intake of refined sugar is very low (usually 0 most days), but I still crave caffeine quite a bit. I find the only way I can cut coffee is to taper it back

My intake of refined sugar is very low (usually 0 most days), but I still crave caffeine quite a bit. I find the only way I can cut coffee is to taper it back and suffer for a few days, and even then I can't get down to zero caffeine intake. I tried quitting all forms of caffeine for about a month and I'm never trying that again as it was pretty horrible the whole time.