There are a number of side effects that I've experienced from consuming Soylent. Rice protein is brutal on your digestive system, so I have to drink pickle juice to calm my stomach in the afternoon. Even without the rice protein, Soylent frequently gives me acid reflux. Additionally, although Soylent is nutritionally complete, I don’t feel full after drinking it unless I chew on crackers. Finally, I have a continual craving for chocolate, cheese and bread, for reasons I don’t understand.