Because a larger percentage of the Ryvita biscuit is fibre, and a lower percentage is glucose, it will burn and produce less energy. As it burns, the water heats up and causes a temperature change in the boiling tube. In human processes this energy would be used for daily activities. In humans, weight loss is caused by an imbalance in the amount of energy taken in compared to that that is expended. By switching biscuits from Digestive to Ryvita you can therefore technically lose the equivalent energy that you would have gained by eating a Digestive biscuit rather than a Ryvita one (more than twice as high energy content and more than twice as high fat content).…
