When you take the fiber carbs out, avocados have virtually no carbs. Myfitnesspal.com says less than 2 useable grams of carbs for 100 grams of avocado, which is 15.3 grams of fat. I have been eating at least one a day for a while now. Kiefer, however, said something somewhere about the majority of your fat coming from plant sources being bad. I have been away for several days and not sure if this issue has been resolved. But they are tasty, high in fat, and low in usable carbs.