And by mixing and matching different research papers, any diet peddler/author/etc can make it appear as their specific diet is "backed by science" (when it's just a bunch of disparate papers in its favor, without context -- e.g. later responses to those papers, quality and reproducibility, papers that study the exact opposite claims and also work, etc).
The only real science is not in studies (that are a dime a dozen, of widely different quality, and most are shoddily done and discredited by later studies), but in what's accepted by the nutritionist/medical professionals as nutrition 101.
Not sure for the particulars of this case, but setting up a "foundation", "non profit (which gives one huge salaries as 'expenses')" and so on, are the oldest tricks in the book for con-men, from churches, to donations, activists, etc...
So "all money goes to the foundation" is hardly comforting (the foundation can be setup to cut them a big payslip for their consulting/services/running it, save him tax, etc, in the end make them more than they would make with a "for profit" entity).
There's your connection of science to low-carb
Carbs in the quantities that we have them these days are ridiculously unnatural,