It's around 80% genetic though and 20% environmental, it has a much lower impact and wouldn't change a someone getting a diagnosis or not.
Even if some of the things mentioned above, saffron and water etc, that's things that help everyone (and easier for those with resources, money, more time) - doing most of those is going to help you, so it's no surprise it also helps people with ADHD but it's in no way a replacement for medication or better than the meds. Some people may do both, and say it helps them (that's fine, along as they understand the evidence base research on the meds etc), as in many people will be on a supplement and meds, but credit the supplement as the reason they feel better which is curious. I think we're seeing these discussions crop up more, as the anti-intellectual movement grows, and we see this with more people drinking raw milk, not using folic acid in pregnancy.
It's also because there's a difference in medicine between something being signicant and being clinically significant. So a blood pressure medication may work and reduce people's blood pressure but one or two points, so it's significant. But on the scale of things a few points is nothing (especially compared to other meds) - so it's not clinically significant. I think there needs to be more, I guess transparency between the science and people, so they understand it because otherwise that's how misinformation grows. Many people believe that the pill means you'll definitely get multiple cancers - when it actually significantly reduces the risk of endometrial cancer and ovarian cancer, and whilst it has a minor likelihood of causing breast cancer, it's a much smaller number than sensationalised (by people who are anti-birth control etc, which is happening here now and they want to curtail women's access to such meds), we also know that all the side effects of it, are of a much higher likelihood in pregnancy anyways - which isn't spoken about because that fits with the roles they want for women. All this to there I'd a growing wellness, MAHA movement, which uses anti-scientific information (not referring to posters on this thread btw but there's definitely beem more aggressive discussions blaming family structures, lack of discipline etc as the cause lf ADHD. For the general public it's confusing and is having a big impact on people's health particular women. So we do need to be careful when we talk about things like this and realise that on balance those methods may improve wellbeing but won't alleviate ADHD symptoms directly.
P.S not saying this thread is necessarily going that way, but that across SM and rising figures of the right, think tansk etc the research shows this is the way we're going, and whilst science doesn't always get it right, a part of all studies is trying to disprove yourself and peer review which is obviously not a requirement for SM, that comes with some pros but definitely some cons.