Yeast bacteria

What do you think of the use of beer yeast in feed? The theme of a sentence is to send a piece of advice: there are too many food in porridge and many fakes, so it is better to use other fermented products. Like fermented soybean meal. There are many fakes and the quality is difficult to control. Real active dry yeast can indeed be used as a source of protein. But you have to know that yeast does not have the function of digesting any nutrients except simple sugar. -I've studied. Thank you.