So protein is great, incomplete protein not so much. All protein that can’t be used is broken down into glucose ultimately and that process is endometabolic, meaning it takes more energy to complete the process than the glucose will provide. Plant protein is about 70% incomplete, animal protein is about 70% complete. Glucose, no matter the source contributes to metabolic syndrome and type 2 diabetes eventually. I’d also read up on protein toxicity, it’s pretty rough on your kidneys. Our bodies run best on sporadic blood glucose, but mainly fat. It’s how our bodies store and retrieve energy, always has been, and likely always will be.