I used to take an ECA stack (mainly just ephedrine 24mg + caffeine 200mg) 3x a day and it crushed cravings. But hard to get that stuff, so what I found recently that's helped me (and take this advice with a grain of salt, this is not medical advice), is I take 2mg nicotine lozenge through the day when I get sugar cravings, but also a supplement called "holy ephedrix" 2x a day, you can google it and see.