Best Yoghurt in the Country Image 1 of 1 Get Image Embed Code Description copied from http://www.sulit.com.ph/index.php/view+classifieds/id/6501163/Yogurt+Drink Yoghurt is a dairy product produced by bacterial fermentation of milk . The bacteria used to make yogurt are known as " yogurt cultures". Fermentation of lactose by these bacteria produces lactic acid ,