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.
A: Collagen is a protein that gives connective tissue strength and skin elasticity. Many of the wrinkles that come with age are due to sun damage or smoking, but some also occur naturally as collagen quality diminishes. Collagen supplements come in capsules, tablets and powders that are basically gelatin.