The Dietitian's Guide to Eating Bugs by Daniel Calder is a comprehensive guide to the nutritional content of insects. He believes insect breeding and consumption are important elements sustainable living, particularly when it comes to complementing foraged plant material with meat products. Numerous insects contain nutrients similar to those found in more conventional livestock, except the feed to conversion ratio is much higher and they're much cheaper to breed. You can find the book at scribd. Also available in e-book format for $35.
Dr. Georgia Ede reviews the EAT-Lancet’s global nutrition study, “Food in the Anthropocene—the EAT-Lancet Commission on healthy diets from sustainable food systems,” which envisions a “Great Food Transformation” based on minimizing consumption of animal foods. She concludes, “the report fails to provide us with the clarity, transparency and responsible representation of the facts we need to place our trust in its authors. Instead, the Commission’s arguments are vague, inconsistent, unscientific, and downplay the serious risks to life and health posed by vegan diets.”