Why eat more meat than carnivores do?
I am not here to advocate a specific diet because it is an entirely personal choice. I just would like to underline an evidence.
What matters here is to understand how an omnivore eats and how a carnivore eats. Keeping it simple: an omnivore eats a lot of food categories, a carnivore eats mostly meat.
Then, how many times a day a carnivore eats meat? The common meat absorption cycle of a carnivore is to alternate between fasting and feasting. When a prey is captured, a lion, for example, will eat up to 30kg of meat, then he will fast for a couple of days in order to first digest, then to find a new prey. It is the same for almost all types of carnivores. The length of fasting depends on their environment and on their ability to hunt. But even when the hunting is possible, a predator won't eat a prey if it is full and satisfied. This means carnivores don't eat meat every day.
My point is, for an omnivore, it isn't natural/logical to eat meat more often than a carnivore. We do not have the digestive system designed to easily process meat. It seems true that our body has adapted to digest meat. It doesn't mean it is optimized to do so.
As I said before, my point is not to be pro-vegan. Food consumption has a lot of roots in our lives: social, economical, educational. It is really a personal choice.
Nevertheless, I am very comfortable in saying, as a human being, like omnivores do, we shouldn't eat meat on a daily basis. My recommendation is, at most, twice a week, the same for fish, eggs, and animal products. We should start to cook easy-to-prepare meals without animal products. Experiencing and sharing meals containing new ingredients or new preparation process is a new adventure.
The goal is simply to eat as our body is designed to and to learn to appreciate meals with high density and easy to absorb ingredients.