What a Big Thanksgiving Meal Does to Your Body

A heavy holiday meal packed with carbs, sugar, salt, and fats can cause a quick blood sugar spike, followed by a crash that leads to fatigue and cravings. Large portions slow digestion, creating bloating, reflux, and “food-coma” tiredness. The high salt content can raise blood pressure and cause temporary swelling. Rich foods and alcohol increase inflammation, which may worsen joint pain, headaches, or sleep quality. Overeating also stresses the heart, disrupts gut bacteria, and can trigger gout flares in sensitive individuals. Enjoy the holiday—but choose smaller portions, hydrate, and take a light walk afterward to help your system recover