Home Nutrition Food Why Some Dairy Products Are More Closely Linked to Parkinson’s Disease

Why Some Dairy Products Are More Closely Linked to Parkinson’s Disease

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Parkinson’s is the second commonest neurodegenerative illness after Alzheimer’s. Each 12 months within the United States, roughly 60,000 new circumstances are recognized, bringing the overall variety of present circumstances up to about one million, with tens of hundreds of individuals dying from the illness yearly. The dietary element most frequently implicated is milk, as I focus on in my video Could Lactose Explain the Milk and Parkinson’s Disease Link?, and contamination of milk by neurotoxins has been thought-about the “only possible explanation.” High ranges of organochlorine pesticide residues have been present in milk, in addition to in essentially the most affected areas within the brains of Parkinson’s victims on post-mortem. Pesticides in milk have been discovered around the globe, so maybe the dairy trade ought to require toxin screenings of milk. In reality, cheap, delicate, moveable checks are actually out there with no false positives and no false negatives, offering fast detection of extremely poisonous pesticides in milk. Now, we simply have to persuade the dairy trade to truly do it.

Others usually are not as satisfied of the pesticide link. “Despite clear-cut associations between milk intake and PD [Parkinson’s disease] incidence, there is no rational explanation for milk being a risk factor for PD.” If it have been the pesticides present in milk that would accumulate within the mind, we might assume that the pesticides would construct up within the fats. However, the link between skimmed milk and Parkinson’s is simply as sturdy. So, researchers have advised reverse causation: The milk didn’t trigger Parkinson’s; the Parkinson’s induced the milk. Parkinson’s makes some individuals depressed, they reasoned, and depressed individuals might drink extra milk. As such, they advised we shouldn’t restrict dairy consumption for individuals with Parkinson’s, particularly as a result of they’re so prone to hip fractures. But we now know that milk doesn’t seem to defend in opposition to hip fractures in spite of everything and may very well improve the danger of each bone fractures and demise. (For extra on this, see my video Is Milk Good for Our Bones?.) Ironically, this may occasionally supply a clue as to what’s happening in Parkinson’s, however first, let’s take a look at this reverse causation argument: Did milk lead to Parkinson’s, or did Parkinson’s lead to milk?

What are wanted are potential cohort research wherein milk consumption is measured first and individuals are adopted over time, and such research nonetheless discovered a major improve in threat related to dairy consumption. The threat elevated by 17 p.c for each small glass of milk a day and 13 p.c for each day by day half slice of cheese. Again, the usual rationalization is that the danger is from all of the pesticides and different neurotoxins in dairy, however that doesn’t clarify why there’s extra threat hooked up to some dairy merchandise than others. Pesticide residues are present in all dairy merchandise, so why ought to milk be related to Parkinson’s greater than cheese is? Besides the pesticides themselves, there are different neurotoxic contaminants in milk, like tetrahydroisoquinolines, discovered within the brains of individuals with Parkinson’s illness, however there are greater ranges of those in cheese than in milk, although individuals might drink extra milk than eat cheese.

The relationship between dairy and Huntington’s illness seems comparable. Huntington’s is a horrible degenerative mind illness that runs in households and whose early onset could also be doubled by dairy consumption, however once more, this can be extra milk consumption than cheese consumption, which brings us again to the clue within the more-milk-more-mortality research.

Anytime we hear illness dangers related to extra milk than cheese—extra oxidative stress and irritation—we should always assume galactose, the milk sugar quite than the milk fats, protein, or pesticides. That’s why we predict milk drinkers particularly appeared to have a better threat of bone fractures and demise, which can clarify the neurodegeneration findings, too. Not solely do uncommon people with an incapacity to detoxify the galactose present in milk endure harm to their bones, however additionally they exhibit harm to their brains.


Other than avoiding dairy merchandise, what can we do to cut back our threat of Parkinson’s? See Is Something in Tobacco Protective Against Parkinson’s Disease? and Peppers and Parkinson’s: The Benefits of Smoking Without the Risks?.

You can also be concerned with my movies Treating Parkinson’s Disease with Diet and Parkinson’s Disease and the Uric Acid Sweet Spot.

For the impact of meals on one other neurodegenerative illness that impacts our capability to transfer usually, see ALS (Lou Gehrig’s Disease): Fishing for Answers and Diet and Amyotrophic Lateral Sclerosis (ALS).

In health,
Michael Greger, M.D.

PS: If you haven’t but, you may subscribe to my free movies right here and watch my reside, year-in-review displays:

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