The amount of daily protein they were getting would be insufficient for humans, but it was enough to avert a severe protein deficit for the orangutans. (livescience.com)
«In actual fact, these mutants have everything in them to be able to pupate, but because this circuit is not functioning properly, they are unable to ignore the protein deficit,» she continues. (sciencedaily.com)
But here's the deal; almost everything contains protein and there is absolutely no way you can be at a protein deficit, even if you are vegan. (fitbodyhq.com)