The glycemic index (GI) influences food choices by categorizing carbohydrates based on their impact on blood sugar levels. Foods with a low GI release glucose slowly, providing sustained energy and promoting satiation, making them preferable for long-term energy needs. In contrast, high GI foods cause rapid spikes in blood sugar, often leading to subsequent crashes and increased hunger. Individuals aiming to manage weight or blood sugar levels might opt for low GI foods to enhance dietary control and improve overall health outcomes. Understanding the GI can support informed food choices that align with personal health goals.