While you may already know that people from different cultures eat different things, but photographer Peter Menzel decided to capture this in his series: “What I Eat: Around The World In 80 Diets.” Starting off, we have astronaut Leland Melvin who consumes 2,700-calories per day on average. Designing food for consumption in space is difficult. Foods must meet a number of criteria to be considered fit for space. First, the food must be physiologically appropriate, specifically, it must be nutritious, easily digestible, and palatable. Second, the food must be engineered for consumption in a zero gravity environment. Continue reading for more.