What is the Body Mass Index used for? Where is the gallbladder found? Why do weneed essential fatty acids? The Body Needs series reveals why your body needs aba... » 

What is the Body Mass Index used for? Where is the gallbladder found? Why do weneed essential fatty acids? The Body Needs series reveals why your body needs abalanced diet to be healthy. It explains how much of each type of nutrient youneed to eat every day and in which foods those nutrients can be found. Theimportance of water and fiber in the diet are also discussed. The series looksat the way our bodies digest and store food and how the excess is released aswaste. It also investigates the different health problems and diseases that mayoccur when our bodies either have too much or too little of certain types offood. «