digestive system
... There are so many questions regarding digestive systems that you cannot fit it in one page. ... The source that I got my answer is from a book called The Digestive System, by Alvin Silverstein. It is a very interesting book that covers closely about your digestive system. The book is quite reliable, in which he put lot of effort and studies about digestive system. ... Also how your digestive system absorbs fat protein and nutrient and balance it.