Trade up to the complex Live carbohydrates with a low Glycemic Index (because they also contain fibre and protein the sugar/energy is released in a slow sustained way) instead of the Dead, simple, high Glycemic carbohydrates.
High Glycemic means the sugar enters the blood very quickly. This results in a spike in energy followed by a low-sugar crash.
Avoid High Glycemic index foods: white bread, potato, and high sugar foods (like soft drink, sweets, chocolate, biscuits, cake).
Eat Low Glycemic index foods like fruits and vegetables, whole grains, low-carb foods (eg., lean meats), and whole meal pasta. Check this chart of foods and their Glycemic index before your next trip to the super market.
Low GI: 55 or less
Most fruits and vegetables, legumes/pulses, whole grains, nuts, fructose and products low in carbohydrates
Medium GI: 56 – 69
Whole wheat products, basmati rice, sweet potato, sucrose, baked potatoes
High GI: 70 +
White flour, bread, most white rice, corn flakes, processed breakfast cereals, glucose, maltose