Yoghurt is one of the dairy products by utilizing microorganisms, especially lactic acid bacteria (Lactobacillus acidophilus) as fermentation process. Yoghurt lacks vitamin content, protein and high saturated fat. One way to improve yogurt nutrition is to fortify Chrorella sp. which contains nutrients, namely protein 60.5%, fat 11%, carbohydrates 20.1%, vitamins, minerals 4.6%, fiber 0.2%, chlo…