It reports that higher linoleic acid is better for mortality.
One problem here is that it relies partially on reported intake questionnaires. Basically, they ask people to fill out a survey about what foods they've eaten over the past year or so, then they take that "data" and map it to mortality and other health trends.
Another problem is that these are observational studies, not controlled trials. They aren't feeding people linoleic acid and then tracking their mortality. They are looking at how much linoleic acid people say they eat, and certain biomarkers that reflect linoleic acid, and tracking how those predict mortality.
Here's what happens when you do feed people a high LA diet: their levels of circulating oxidized linoleic acid metabolites (OXLAMs) skyrocket. These OXLAMs are causally linked to things like Alzheimer's disease, liver disease, colon cancer, and many other conditions known to increase mortality.
Plus, there's the healthy user bias to consider. Since linoleic acid is the "healthy" fat according to conventional wisdom, people who do other healthy things like avoid smoking, exercise regularly, and generally take care of their health are more likely to eat linoleic acid and live longer. Remember: most people aren't Primal.
Second, plant-based "meat" is back in the news. They keep foisting this on us. They keep trying to make it look palatable. It's never going to work. No matter what they do.
You can't beat nature. You can't create a situation in a lab that's more efficient than the process that's been fine-tuned through bitter trial and error over millions of years. You'll never produce an identical product that's just as healthy and useful for humans. It simply won't happen.
Nothing is created in a vacuum. All those labs will require nutrients as inputs. They'll use antibiotics to reduce growth of pathogens. They'll need to get those nutrients from somewhere—probably grown somewhere in an industrial, unsustainable process.
You can't get around the laws of physics and reality of reality. Remember that.
