Complex sentence: Forbidden rice has recently appeared on the shelves of health food stores in the western United States along with other heirloom rices such as Bhutanese red rice and wild rice, particularly in California; desire for non-genetically modified foods has also contributed to demand for this rice.
Split into simpler sentences: Forbidden rice has recently appeared on the shelves of health food stores in the Western United States along with other heirloom rices such as Bhutanese red rice and eild rice, particularly in California. Desire for non-genetically modified foods has also contributed to demand for this rice.