Not saying his advise is unsound or anything but you might want to look at this.
http://www.quackwatch.org/11Ind/lundell.html
Eating natural foods and removing at least most sugar and starch sounds sensible to me though.
He’s not a quack.
He’s totally right and branded by a heretic by those “doctors” who want to sell you over-priced pills and bypasses.
Most doctors like sick people.
Those yachts aren’t gonna pay for themselves.