START A PETITION 27,000,000 members: the world's largest community for good

Want to Help Prevent Parkinson’s Disease? Avoid This.

Four things we can do that may reduce our risk of developing Parkinson’s disease are: increase exercise; and avoid dairy products, pesticides, and accidents that damage the head. (The latter means wearing your seatbelt and bike helmets.)

What about avoiding pesticides and other industrial pollutants? A recent autopsy study found higher levels in the brains of Parkinson’s victims of certain PCBs found in Monsanto’s Aroclor, which was banned in 1979. The more PCBs found in the brain, the worse the brain damage. The worst three appeared to be PCBs 138, 153, and 180, all of which are significantly lower in the bodies of those eating plant-based diets (see Industrial Pollutants in Vegans).

So, does a vegan diet reduce the risk of Parkinson’s disease? If you watch the above 3-min. video you’ll see that every prospective study looking at dairy products and Parkinson’s disease found an increased risk associated with consumption. This may be because dairy products in the United States are contaminated with neurotoxic chemicals. Autopsy studies consistently find higher levels of pollutants in the brains of Parkinson’s disease patients, and some of these toxins are present at low levels in dairy products.

Tetrahydroisoquinoline is one such parkinsonism-related toxin found predominantly in cheese. Although the amounts of this neurotoxin—even in cheese—are not very high, the concern is that the chemical may accumulate in the brain over long periods of consumption resulting in the brain damage associated with Parkinson’s diease.

I also touch on Parkinson’s in:

Avoiding dairy may have other benefits. See, for example:

What if it’s too late and you or a friend or family member already have Parkinson’s? In my Care2 post on Friday I’ll cover Treating Parkinson’s Disease With Diet.

In health,
Michael Greger, M.D.

PS: If you haven’t yet, you can subscribe to my videos here and watch my full 2012 year-in-review presentation Uprooting the Leading Causes of Death.

Image credit: National Cancer Institute / Wikimedia Commons

Preventing Blindness With Diet
Does Skim Milk Cause Acne?
The Effects of Cow’s Milk on Babies

Read more: Health, Conditions, Diet & Nutrition, Eating for Health, Videos, , ,

have you shared this story yet?

go ahead, give it a little love

Dr. Michael Greger

A founding member of the American College of Lifestyle Medicine, Michael Greger, M.D., is a physician, author, and internationally recognized speaker on nutrition, food safety, and public health issues. Currently Dr. Greger serves as the Director of Public Health and Animal Agriculture at The Humane Society of the United States. Hundreds of his nutrition videos are freely available at


+ add your own
1:14PM PDT on Jul 3, 2013

Thank you doctor, very informative article and I enjoyed reading the comments from the care 2 members..

5:53AM PDT on Apr 14, 2013

Thank you Dr. Michael Greger, for Sharing this!

6:14PM PDT on Apr 11, 2013

If it is genetic....there is no way of stopping it! Or anything else genetic....

1:54AM PDT on Apr 11, 2013


7:13PM PDT on Apr 8, 2013


5:49PM PDT on Apr 6, 2013

Thanks :-)

1:25PM PDT on Apr 6, 2013

Wow,great info, thank you!

9:38AM PDT on Apr 6, 2013

Thank you, I'll make sure I stay away from these things.

11:49PM PDT on Apr 5, 2013


6:45PM PDT on Apr 5, 2013

Studies so far have also found PD sufferers have:
*deficiencies in DHA. Men convert short chain omega-3 into long chain DHA, another possibility why PD affects more men than women. Where do you get the most DHA? Animal products.
*high levels of non-heme iron. Heme iron, only obtained from animal products, causes no problem but non-heme catalyzes the excessive production of free radicals and it accumulates in the brain. Autopsies on PD brains show highly elevated levels of non-heme iron.

Herbert M Shelton, prominent vegetarian advocate and the influential founder of the American Natural Hygiene Society and Nature Cure movement died of PD. Max Huberman, a leading member in the ANHS, also suffered PD. There is absolutely no study establishing less risk of PD through a ‘plant-based diet’.

Enjoy your coffee: caffeine protects against PD!

add your comment

Disclaimer: The views expressed above are solely those of the author and may not reflect those of
Care2, Inc., its employees or advertisers.

people are talking

Onions are really very good

Thanks to All who made this rescue possible.

I enjoy eating carrots ;) thanks for sharing

When my first husband and I separated back in the 80's, I nobly allowed him to keep our doggie becau…


Select names from your address book   |   Help

We hate spam. We do not sell or share the email addresses you provide.