A demand for the average American to eat more meat would have to explain, as a baseline, why our already positive trend in meat consumption isn't yielding positive outcomes. There are potential explanations (you could argue increased processing offsets the purported benefits, for example), but those are left unstated by the website.
[1]: https://www.agweb.com/opinion/drivers-u-s-capita-meat-consum...
[2]: https://ers.usda.gov/data-products/chart-gallery/chart-detai...
I find that to be a challenging amount of meat. It's a lot! And to find out that's average???
Americans eat way too much meat. Cheese, too.
I used to drink protein shakes, but now I am actively against these. Artificial sweeteners provoke insulin release [1] [2] that leads to type-II diabetes.
[1] https://pubmed.ncbi.nlm.nih.gov/2887503/
[2] https://www.sciencedirect.com/science/article/abs/pii/S10568...
Lions can't eat ducks or chickens. We can and do.
Why should I, as a top predator, drink a protein powder instead eating a meat of a big mammal?
Why did you drink them before, if you appear to fundamentally object to the idea?
You must have always known humans were apex predators, and that was the only non-sweetener reason you listed.
Meat contains essential fats to various degrees while protein powder does not at all. Usually, protein powder ([1] as an example) is not exactly matched to the human profile of amino acids [2], that means extraneous amino acids will be converted to glucose and stored as fat.
[1] https://explosivewhey.com/blogs/fitness-nutrition/what-is-wh...
[2] https://pmc.ncbi.nlm.nih.gov/articles/PMC11291443/
Notice that ratio between leucine and methionine is 3/1 in consumption profile and is much higher in the whey protein profile. This leucine most probably will be wasted.
It doesn't mean the diets of humans are biologically supposed to consist of huge amounts of meat.
Most apex predators are of course obligate carnivores. But humans are probably near the top because the use of weapons and tools makes us highly dangerous, so most land animals are wary of humans. Even many predators don't prey on humans for food.
(Although some large land predators do, mostly when they're desperate for food.)