Is it possible to survive eating only one type of food? Have you ever wondered what makes the ideal human food? Do we even know what people need to eat to be healthy? I designed a “Science Food” that I consumed at every meal for more than one year. Yes, you read that correctly. I did not eat food—I ate an engineered food supplement every meal for more than one year. “Science Food” is an engineered meal replacement made from essential ingredients. What are “Essential Ingredients”? Essential ingredients are the food related inputs that are essential, or critical, for survival. The essential ingredients include carbohydrates, lipids, protein, vitamins and minerals, fiber, and water. The ingredients of science food are simply these essential inputs at their required input levels. Science food is very quick and it can help many people with busy lives. It is also very affordable compared with traditional food. The Essential Ingredients journey continues in the next book called The Influential Ingredients.