You are what you eat. The kind of food you eat affects your health and general lifestyle in numerous ways. You must watch you eat and how frequently you eat it if you want to live healthy and happy. Eating a balanced diet is key. Each nutrient whether vitamins or proteins is essential to the body and should be taken in in the right quantity and amount at every stage of life. Thus it is important to take your time and learn the proper foods to consume, the nutrients they contain and what each can do for your general health. It is also important to note the differences in nutrition for kids, adults and the elderly. As each stage presents itself with different challenges.