@turdburger Do you have more evidence than your statement "almost all primates are omnivores." or are you guessing?
I did a tertiary search and found that you can now add:
Bonobos
Gelada baboons
Howler monkeys - Leaf eaters
black-and-white colobuses - Leaf eaters
sportive lemurs - Leaf eaters
Mantled guereza
Marmosets - gum eaters
Gelada - primarily feeds on grass

...to your herbivore list with Gorillas.

Bonobos have been observed hunting and eating meat (and also other bonobos) in the wild. It is not known how frequently they do this, simply because they have not been studied enough. Marmosets eat a variety of food from both plant and animal sources, and howler monkeys, while they mainly specialise in leaves, have been observed eating eggs. Geladas (which have been included twice in the list) despite being mainly grazers will eat insects if they are available.

While people like to try to classify things tidily into categories, there are not that many species who have evolved to specialise in only animal or plant sources of food, and rather more who fall somewhere between these two extremes. The argument in the original post uses data that doesn't really mean anything in order to impart an appearance of scientific credulity. I've seen the same argument on dog food advertising to claim that dogs and wolves are carnivores (which technically they aren't as they are observed to eat plant material in the wild). The lines dividing them are not that clear.

Hello,
I think your article is excellent and feel it proves via one method of analysis that humans are not carnivores. However, I do not feel it proves we are meant to consume a vegan diet. In other words, it still does not prove we are meant for no animal food at all, just that we are not necessarily meant to consume animal foods in the way carnivores do, and also that much of our animal-related nutrient should come from the types of animals that do no require the anatomical features of say a lion to consume them. My point is this- one would be hard-pressed to find a logical, clinically oriented physician recommending a vegan diet, who does not also recommend a B-12 supplement. Even T. Colin Campbell takes B-12. Why? We need it and can't get it from a vegan diet. Some vegans argue that we would get it all if our food wasn't sterile and still ate the bugs that came along with food when procured in nature. What is a bug? An animal. Does eating a bug require massive temporalis muscles, etc? No. The second part of my argument is that even though we are not designed to eat meat the way a carnivore does, it does not prove we are designed to NOT eat meat, just to NOT eat meat that way. In essence, we are designed to eat bugs and....cooked meat. Humans are adapted to eating cooked food. We do not share exact anatomical features of an omnivore, a carnivore or an herbivore in the wild, we are completely unique. Why? Because we are the ONLY animals on the planet adapted to eating cooked foods. Our need to consume B-12 proves our need to consume foods that contain it, ie animal foods. Our lack of exact correlation to omnivores, carnivores and herbivores proves we are not exactly like any of them. Our closeness in design to omnivores and herbivores proves we are designed for that type of food, but not ONLY that type of food.