Cyd Notter

Author and Nutrition Educator, Founder of The "Plan A" Diet™

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Diet and the Alzheimer Gene

March 19, 2016 By Cyd Notter 3 Comments

Dear Coach:  One of my parents died with Alzheimer’s disease.  I plan to get tested to see if I have the gene but wanted to know if you could recommend any foods to help prevent Alzheimer’s.   Anonymous

Dear Anon:  My sincere condolences to you on your loss.  It’s a real struggle when a loved one develops Alzheimer’s; I applaud you for being concerned about your own cognitive function.  I know that you’re not alone in your concerns; the class that I offer on this topic fills up each time it’s offered.

health risk There is good news – you are not a helpless victim without options.  There is MUCH you can do to lower your risk.  But first let’s take a look at the Alzheimer’s gene.  Back in the 1990’s, the ApoE4 gene was discovered to be a major player in the susceptibility of Alzheimer’s.  The ApoE4 gene is the principal carrier of cholesterol in the brain. If someone inherits the gene from either parent, their risk of getting the disease triples (this affects about 15% of the U.S. population).  If someone inherits the gene from both parents, their risk increases nine-fold (this affects about 1 in 50 people).

To date, the people in Nigeria have the highest frequency of the ApoE4 gene in the world.  Yet they have some of the LOWEST rates of Alzheimer’s.  This paradox is explained by the grain and vegetable diet of the Nigerians, which results in low cholesterol levels that have appeared to trump their genes.

Cholesterol encourages the production of beta-amyloid (plaques that lie between brain cells). People whoplaque buildup have the ApoE4 gene absorb cholesterol more easily from their digestive tracts compared with people who don’t have the gene.  They tend to have higher cholesterol levels and higher risk of both heart disease and stroke.  In a 20-year study of 1,000 people, researchers reported in the Annals of Internal Medicine Journal that having the ApoE4 gene doubled the odds of Alzheimer’s, but high cholesterol nearly tripled the threat.  So if the greatest threat of Alzheimer’s are treatable factors – such as high cholesterol and blood pressure – then controlling these lifestyle factors could reduce a person’s risk, even if they have the DOUBLE ApoE4 gene (the odds decrease from 9x down to 2x).   This is great news for anyone concerned not only about their brain health, but heart disease and stroke as well.

Another study of 9844 people Kaiser Permanent subscribers in California showed that a high cholesterol level in midlife (early 40’s) predicted their Alzheimer risk twenty to thirty years later.  If your cholesterol is around 220, your Alzheimer risk is about 25% higher.  And if your cholesterol is in the 250 range or higher, your likelihood of developing the disease would be about 50% higher.

IMG_1648What’s the best way to lower your cholesterol and blood pressure?  Diet trumps all.  Cholesterol is only found in animal foods – meat, fish, dairy, eggs – and so lowering or eliminating the intake of meat and dairy is crucial.  Don’t be fooled by believing that chicken and fish are healthier – they contain as much cholesterol as beef.  Enjoy a diet which focuses on beans, potatoes, rice, corn, pasta, vegetables, fruits, nuts and seeds.  It’s not rabbit food – but delicious entrees of lasagna, burritos, stews, tamale casseroles, burgers, stir frys, cheesy soups, sloppy joes and much more.  A plant-centered diet is not a restriction – but a gift!  I continually urge people to lower cholesterol through food, not statins (which have terrible side effects and only lower risk of cardiovascular events by 1.6%).

Should you get tested for the gene?  Doctors can check which ApoE genes you are carrying with a simple blood test, and some people are eager to find out as much as possible about themselves.  A negative reading could put their minds at rest.

On the other hand, there’s nothing you can do to change your genes, but you can do much to reduce the risk of their expression. If you discover you have the gene, how will that affect you mentally?  Only you can determine if testing is right for you.  Not having the gene does not guarantee freedom from Alzheimer’s;  just as having the gene does not guarantee you’ll develop the disease.  The Nigerians are a good example.  Remember that genetics load the gun, but lifestyle typically pulls the trigger.

If you’d like to be notified of our classes or if you have a question, please contact me through www.cydnotter.com.  (Sources: Dr. N. Barnard Power Foods for the Brain; Dr. M. Greger, NutritionFacts.org: The Alzheimer Gene: Controlling ApoeE).

Filed Under: Oils Tagged With: Alzheimers, ApoeE4, cholesterol, dementia, diet, diet and Ahlzheimers, gene, plant-based, prevention, vegan, whole food

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