In her doctoral dissertation, Lamminen assesses the potential of various microalgae as protein feeds for dairy cows. Furthermore, the effect of protein feeding on milk yield and metabolism was investigated in one of the experiments. Cows didn’t have an appetite for microalgaeThe palatability of microalgae was clearly poorer than that of conventional protein feeds. Milk and milk protein yields achieved through microalgae feeding were comparable to those achieved through soybean feeding. With microalgae feeding, the corresponding ratio was approximately 100%, making the impact of microalgae on food security neither positive nor negative.