You plan for the meals. You plan for the guests. Maybe you even plan for the feeling of equal parts relief and exhaustion once the holidays are actually over. But what about all the leftovers? The good news is, traditional holiday meals have got it all: protein, fiber, fat, and carbohydrates. A typical plate—say roast turkey with Brussels sprouts, green beans, and mashed sweet potatoes—ticks all the nutritional boxes, which is key for helping blood glucose (blood sugar) levels stay steady, says Angela Goscilo, MS, RD, a registered dietitian and senior manager of nutrition at WeightWatchers ®