The dietary issue is infection (usually two or more, basic shit like candida in the gut, mold exposure, EBV recurrence, Lyme, parasites, more) causing systemic malnourishment, and lack of homeostasis, causing nervous and endocrine issues/misfires,
(at which point you'll often notice immunodeficiencies, minor "unexplainable" abnormalities in bloodwork),
and indeed cognitive issues, depression, anxiety, and other more severe brain malfunctions.
> None of these hold up under actual studies
I agree with you overall, but interestingly, research really has found a link between lower Vitamin B12/B6/B2 levels and ADHD. Also lower Vitamin D, and delayed circadian rhythm. You certainly can't use supplements as a replacement for stimulants but they may help.
A sizable (3-10%) part of the population can either not digest lactose or has a significantly reduced ability to absorb fructose in the gut. The resulting fermentation and low dosing of low quality alcohol can cause cognitive symptoms which can be totally alleviated by appropriate diet.
It is easy to test (drink a sugar challenge drink and measure H2 in breath) but as it is time consuming and not profitable rarely done.
Are you conflating lactose intolerance with autobrewery syndrome? O.o
I find the "autobrewery" term hilarious and great.
Imagine being able to be constantly buzzed just by eating some random fruits. it almost seems too good to be true.
In all seriousness I'm sure that people suffering from it don't appreciate it that much, but at first glance it seems like a positive problem to have!
The diabetes and cancer are probably far from a giggle.
None of these hold up under actual studies. It’s the domain of wishful thinking that sadly preys upon people desperate for answers. Some times the placebo effect works for a while, but usually people just end up with a cabinet full of supplement bottles and a history of fad diets with no progress on their condition.