
Carbohydrates have a complicated reputation. On one hand, they’re our body’s main source of energy, powering our brains and bodies to get through the workday or a workout. On the other, they’re often demonized as causing high blood sugar or weight gain.
That’s because simpler carbs, like white bread and potatoes (particularly when they’re consumed in large amounts or not in combination with protein and vegetables), can cause blood sugar spikes, a rapid and significant rise in blood glucose levels (although walking after meals can help with that). Those spikes and subsequent dips in blood sugar can impact how you feel and your overall energy levels. Over time, repeated spikes and prolonged high blood sugar can also lead to increased risk for cardiovascular disease, insulin resistance, and diabetes.