OPF uses old oil palm trunk that are high in lignin. The high content of lignin in OPF is one of the main reasons why it is so special. In dietary fibre, lignin is particularly invaluable. It is a component of fibre that undergoes minimal changes in the body. It is invaluable for its binding ability binding cholesterol, bile salts, fats, carbohydrates and toxins in the intestine for elimination. Thus, when talking fibre supplements of food, one should choose product that is high in lignin to truly benefit from the effect of dietary fibre. However, not all source of dietary fibre contains lignin, as it is only found in mature tree trunk. OPF only uses oil palm that is more than 20 years old, and large quantity of lignin is available in OPF.