The snacks don't get replenished until the next week's shopping. But they won't starve, because we have other types of food on hand. Aside from the healthier staples that they might prefer to avoid, we try and make as many snacks as we can from scratch. We have a supply of banana bread, cookies, muffins, popcorn, etc. on hand. For the pop, we ask that they drink water.
Pop is a treat at our house.
Their bodies don't need it anyway.