In a recent study from Harvard,"...after looking at survey data from over 128,000 participants over 25 years, researchers found that participants who ate three or more servings of low-fat dairy products were 34 percent more likely to develop Parkinson's than those who ate only one serving per day.
Additionally, those who had just one to two servings of low-fat dairy products still saw a 39 percent increased risk compared to those who had less than one serving per day. Even more interestingly, scientists found no link between full-fat dairy products and an increased risk of Parkinson's."
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Neurosmith
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Why we look at the actual study rather than taking the news article's word for it: "In the meta-analysis, the pooled relative risk comparing extreme categories of total milk intake was 1.56 (95% CI 1.30–1.88), and the association between total dairy and PD became significant (HR 1.27, 95% CI 1.04–1.55)."
Personally I've noticed I can tolerate small amounts of full fat dairy, but more seems to be adverse.
Yes! I read 20 years ago that low fat dairy products were worse for you than full fat. I think it was a study on all cause mortality low fat consumers vs full fat consumers. We have been lied to for at least 65 years. It's the same for salt and other things.
But alcohol, something that probably is damaging our brains, has study after study saying a daily dose is good for you. Hmmm.
Totally agree re misinformation about saturated fats and and salt, but alcohol study results are so polarised. Are the good results due to the actual alcohol or another beneficial ingredient eg resveratrol? I'm suspicious that the results of many studies might tend to depend on how they are funded ie what they are trying to 'find'.
0.3 - 0.5 glass per day appears to be the average person’s optimal average, given the vast wealth of observational data suggesting total mortality and most disease risks are bottomed out here, and suggesting it is safe for brain volume and beneficial for dementia.
If you only consider PD when determining the dosage, it appears that half a drink per day is insufficient. approximately 2 glasses per day are optimal for PD. This is supported by a meta-analysis suggesting that alcohol consumption is associated with a reduced risk of PD.
No, contrary to what is often said here, this applies to alcohol in general and not just red wine. However, I try to prioritize the much-praised beneficial effects of antioxidants in red wine, such as resveratrol and flavonoids, even though there is a lack of supporting evidence for that. Overall, a more decreased PD risk was associated with beer consumption, but not liquor and wine. This may be because beer has a much lower ethanol content but higher antioxidant levels, such as folic acid, niacin, purine, and other phenolics believed to mediate the neuroprotective effects of alcohol. Beer is also associated with a high concentration of uric acid, which has been shown to have neuroprotective effects in animal studies.
My somewhat arbitrary compromise is 1 glass of red wine or beer per day. 🍷🍺
I’ve read about the dairy link before but I actually feel I do better when I’m having it that when not. In a spell of being very low carb I moved over to lactose free full fat milk and have stuck with that in case that’s a cause of inflammation .
That's probably due to the lack of fat rather than the fact that it was dairy. Butter is one of the healthiest fats to cook with. Our bodies store energy as saturated fat and our brains are made from mostly saturated fat so why on earth should anyone suggest it was bad for us to eat it?
Also your brain needs fat to function. Low-fat dairy products--yogurt, cheese, etc.--often have more sugar than the full-fat version. And something to artificially thicken them. I am lactose intolerant so don't drink milk and I dislike yogurt. Do eat a fair amount of full fat cheese. I recently heard that aged cheese can be a source of probiotics.
Cow's milk is made for baby cows. That is it's purpose. It is not meant for humans to consume on a regular basis. At least that is a perspective I think is often missing from the "dairy" conversations.
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I asked Chat GPT what the best supplements to take for PD
Is Parkinson's disease a lifestyle disease? 1. Parkinsonian lifestyle (higher risk).
Research suggests faster progression if you regularly drink cow's milk or eat lots of dairy
Worldwide Parkinson’s Disease Statistics 
