It is more of what makes “nutrition science” utter garbage. “...research using data from a 2016-2017 survey of Wisconsin residents had found dietary isoleucine levels were linked with metabolic health and...higher BMIs...”
Yes, people eating the Standard American Diet AND also eating lots of “eggs, dairy, soy protein and meats” tend to be fat. And fat people tend to have bad health. But is it the essential amino acid, or all the carbs found in the Standard American Diet?
Well, let’s find out by studying animals (mice) that, as you point out, almost never eat stuff with high levels of isoleucine. “In the wild, they prefer grains, fruits, and seeds...Mice are particularly fond of these types of foods because they are high in carbohydrates which equates to lots of energy for these small animals that are always on the move. While their diet is primarily vegetarian...”
So while mice, like humans, CAN eat almost anything, it is likely their optimum health comes from eating foods low in isoleucine.
What about humans? Well, we sure can’t tell much from a survey in Wisconsin on people eating huge amounts of highly processed foods!
And it would be easy to find out how it works in humans because pretty much ANYONE eating a “Carnivore” diet would be eating a diet uncommonly high in isoleucine. And what happens to people on the Carnivore diet? Well...they tend to have great health! Not obese and certainly not struggling with diabetes and/or “metabolic health” issues, including obesity.
We KNOW the answer already. So what is driving this bogus “science”? Could it be vegans and the anti-meat people pushing their anti-meat agenda?
And there was the doozy of a study the other day saying that Intermittent Fasting will lead to heart attacks.