As a rule of thumb it will about double in volume (1/2 cup raw = 1 cup cooked). There's not any change in the amount of calories (unless you cook your oats in milk as noted above). It's traditional to add brown sugar and raisins to oatmeal.
1 Collagen is most commonly found within the body in the skin, bones and connective tissues. 2  The word collagen is derived from the Greek kolla, meaning glue. 3  Collagen gives the skin its strength and structure, and also plays a role in the replacement of dead skin cells.
Collagen is a structure found naturally in the skin. It is essential for helping us stay looking young and vibrant. It's also the structure that makes skin look full and firm. When it begins to break down and is not replaced by the natural processes, the skin starts to look wrinkled, and our face quickly to sag. The loss of collagen in our face does not just make us look older; it makes our skin look dull and rough. Some women resort to collagen injections, to retain that full, plump look.