Palakkadan Matta rice more nutritious than white polished rice because parboiling before milling retains some nutrients.[ One serving cup of 1/4 size can contain 160 calories and 1 gram of fibre. White rice doesn't contain any fibre. The brown outer layer of the Matta rice contains many nutrients and white rice is made by polishing away this valuable layer. One cup of Matta rice can contain 84 grams of magnesium and one gram of calcium. It also contains vitamins.