My belly was at its smallest last summer when I was sprinting. I'm about five pounds up from then, six pack turned into a 4-pack. Got down to a 30" waist for a bit, back up to 32" - I'm a 31 year old male. That was, of course, with Warrior-style once a day meals, 2500 to 3000 calories, mostly carnivore very low-carb and nutrient-dense foods. This year I've been eating too much cheese and not sprinting at all, really. It shows a tad, but my labs are excellent. So meh. Maybe try sprinting?
Steak, eggs, potatoes - fruits, nuts, berries and forage. Coconut milk and potent herbs and spices. Tea instead of coffee now and teeny amounts of kelp daily. Let's see how this does! Not really had dairy much, and gut seems better for it.