Silica particles can be used in a variety of pharmaceutical applications such as drug delivery. A new application seems to support studies in increasing fat metabolism using 1 micron diameter silica spheres. Because obesity is a problem for many people around the world, medical research is looking for ways that the body can pass fat molecules thru the body without absorbing the fats and sugars. Silica nanoparticles in the 1 micron range seem to support this goal. In studies the silica particles appear to bond to fat molecules, allowing the fat molecules to pass through the body, thus helping to enhance fat metabolism. Please review this link to a new study on improving fat metabolism in the human body.