Turmeric Forskolin Patrick Holford takes the glycemic index one step similarly and uses a concept known as the glycemic load. The glycemic load takes into consideration the glycemic index as well as the total carbs in a given quantity of food. for example, a bowl of metal-cut oats (1 oz.) has 2 GL even as a bowl of corn flakes has 21 GL. similarly, 1/2 an apple has three GL whilst a banana has 12 GL. this is pretty a difference. Holford is a large fan of oats. He claims in his e-book The Holford Low GL diet,