Did this person tell you to cut all carbs, or just simple carbs? Vegetables are
carbs. Fruit are
carbs. Whole grains are
carbs. Beans are a combination
of protein and carbs. I think what most would advise is to avoid white flour, bagels, sweets, anything that turns to sugar quickly in your system. That's why you're craving sugar -- carbs are necessary for energy, and sugar is quick energy but also stores as fat if not burned immediately. Same with processed carbs.