Hi! I noticed a question you asked about sonic back in December. I have an answer. My daughter works at Sonic, didn't back in December when you asked the question, but she says the cherry syrup they use in drinks is the only low carb one there. She doesn't know the exact count though, if aspartame doesn't bother you you could get any cherry drink made with the diet sprite like a cherry limeade. They are scrumptious. Just thought you might want to know.