Eating well and taking supplemental vitamins are keys to maintaining one's health. For one to appreciate what "eating well" means, they must understand that having a well-balanced diet is very simple, but also very important for one's physical and mental well-being. The human body requires the proper mix of vitamins, minerals, proteins, fats and carbohydrates, in order to function. Food is fuel for any animal and having a good understanding of what is good for one's body is important. Lean meats, fruits and vegetables and grains are all important and all of these need to be items in one's daily diet.