One of the most important nutrients that natural foods have is water. This includes seeds, nuts, even avocadoes. When these foods are dried even at low temperatures they lose most or all of this nutrient. Once dehydrated these foods are no longer whole foods as nature created them but they are lacking in nutrients one of which is water. When the water is gone the complete structure of the cells of the food change as a result. For those who are new to eating raw, using dehydrated food is good for the transition period but it is much better for health to eat whole raw foods as much as possible. If you get the urge to drink with or after your meal that means you are not eating the best food for your health. When we eat whole foods from nature there is sufficient water content in them (e.g. fruits and vegetables) to not give us the urge to drink after eating them. This natural water is the purest and best water that we can put in our body.