The Principles of Eating Healthy Deciding a healthy diet can be difficult as every single person is different who likes different things. For example, even though a healthy diet may consist of sprouts, there are some people who just cannot stand them so there has to be an alternative. That means that every single person’s diet will be different and what all experts can do is to show us which foods are healthier than others so that we can make our own decision based upon our preferences.