Yes, there is a distinction. Fiber generally refers to all fiber types, including those added to foods or supplements. Dietary fiber, on the other hand, specifically refers to the natural fibers found in foods such as fruits, vegetables, grains, and legumes that are consumed as part of your diet.Yes, there is a distinction. Fiber generally refers to all fiber types, including those added to foods or supplements. Dietary fiber, on the other hand, specifically refers to the natural fibers found in foods such as fruits, vegetables, grains, and legumes that are consumed as part of your diet.