Keto Plus Pro Hunger, not willpower, is the number 1 enemy of any diet. Hunger is a natural response of the instinct of self-preservation. It is the alert that your body needs nutrition to replenish the energy spent to keep the body functioning at an optimal level. This primary impulse, however, does not discriminate between healthy or unhealthy food options. It is only the alert that it is time to eat and hunger will be satisfied with what you choose to eat.