I don't need to do that personally. If the professionals can't replicate results, then it is a sham [1]. They are selling snake oil and books full of promise they can't back up. She doesn't tend to mention that she had chemo, which you probably understand wipes out the immune system. It isn't uncommon to have little disease activity after that. You probably also don't realize that she didn't use a wheelchair because she couldn't walk, but because of fatigue. Fatigue and balance issues are really common in MS: It'd easily keep you off of a bicycle. There are medicines that help fatigue and sometimes this does ease even if you've had MS for years. There is also a good deal of overlap with depression/mood disorders and MS - which you might understand can come with their own fatigue.
And when I speak of fatigue, I'm speaking of "Oops, I showered today and I can't do anything else" sort of disabling fatigue.
Diet is not a cure for MS, and we should really quit pushing sham cures from folks preying on other people's feelings of hopelessness. Which, as you can imagine, is pretty common with MS. The most horrifying part of this is that it keeps folks from trying things that actually are proven to improve quality of life in the long run: MEdications. Medications actually prevent relapses. Diet does not.
At most, diet is important in the same way it is important for everyone else: Most folks have slightly better outcomes if they, in general, eat healthy and are active. This isn't special to MS nor do you need to follow some strict diet.
Your citation doesn't backup your name calling: there is no information about failed attempts at replicating her results. There is an on-going study with 100 participants on the Wahls protocol. [1]
If I had taken your point of view, I wouldn't have cured my psoriasis. I wouldn't have witnessed someone curing their irritable bowel syndrome. I would have kept taking antibiotics instead of addressing acne with other techniques. In all cases, these were "sham" cures not proven by science according to your POV. In all cases these are now slowly being recognized as valid approaches for treating the disease.
By your reasoning every medical treatment that is accepted today would have to have previously been a "sham" before it was accepted.
What worked for Dr. Wahls might not work for others as well as it did for herself, but it did work for her. Name calling doesn't un-publish her case report [2] or halt the ongoing study of her protocol [1].
Doctors who feel they discovered a radical treatment but can't convince their colleagues and then create a sales website with training courses and products are highly correlated with quackery.
By your reasoning every medical treatment that is accepted today would have to have previously been a "sham" before it was accepted.
A sham includes things like misleading folks. Before the current treatments were accepted, they were in trials. People willingly participated, knowing it was experimental. Folks buying books of unproven cures aren't privy to the same sort of openness. Classic scam behavior.
I don’t know anyone with MS whose disease course went to effectively cured years, but I admit to being ignorant on the subject.