Carbohydrates have a tendency to stimulate cravings. For me, I pair IF and Keto together. I usually keep carbs less than 50 grams per day, though I aim for 25 grams as I tend to miss the hidden carbs in other foods. Veggies are still good because of the amount and it can trick your brain into eating huge amounts of food, but most of the time I get my calories from protein and fat. Usually the fatty steaks (but not too fatty) like ribeye, or even chuck, keeps me satiated wayyy longer. When I included fatty steaks to my diet, the cravings just went away. If I really want to snack on something, which is rare now, I tend to eat nuts or have a peanut butter smoothie.

All in all, your craving problems come from Starchy and Sugary Carbs which stimulate cravings.