Ever wonder why some carbs spike your blood sugar more than others? New research shows that your metabolic health defines your personal "carb-response type." Researchers gave 55 healthy adults seven different meals (rice, bread, potatoes, pasta, beans, berries, and grapes, each with 50 grams of carbs) and tracked their blood sugar responses. The highest blood glucose response differed greatly between individuals: • 35% were “rice-spikers” (they experienced their highest glucose response after eating rice) • 24% were “bread-spikers” • 22% were “grape-spikers” Crucially, one's unique metabolic health (especially insulin sensitivity) predicted their blood sugar response. Insulin-resistant individuals had dramatically higher blood sugar responses to potatoes and pasta compared to insulin-sensitive individuals, who tended to spike the highest with rice and grapes. Eating protein, fiber, or fat before carbs helped insulin-sensitive people significantly reduce glucose spikes but barely helped insulin-resistant people. These results are a friendly reminder that individual biology, not just carb type or glycemic index, determines how your body responds to food. It's a compelling case for personalized nutrition.