Unprocessed starch, as in brown rice or oat, or fructose (bananas etc.). Potatoes, white rice, and most fruits will give you an even shorter term energy boost,

Unprocessed starch, as in brown rice or oat, or fructose (bananas etc.). Potatoes, white rice, and most fruits will give you an even shorter term energy boost, spiking your blood sugar more sharply. By sugar, people normally mean processed sugar; they do not mean starch or fructose found in vegetables or fruit.