roles of genetics in food, control gene makeup with diet, what are nutrigenomics, how to affect weight or genes by diet

Foods That Turn Your Bad Genes Off

By David Blyweiss, M.D., Advanced Natural Wellness

November 20, 2019

Honestly, I think it’s easier to get people to change their religion than to change their diet.

But I stand firm in believing a rainbow diet — one filled with a wide variety of colorful vegetables, fruits, nuts, spices, and seeds — is the key to better health.

In fact, I’ve had cancer patients who were given only six weeks to six months to live. They followed my diet recommendations and gained extra years of beautiful life.

They actually stopped their cancer from progressing and began to reverse the spread.

Was it because there was no free sugar? Correct. Was it because there was no red meat with hormones that were charbroiled or barbecued? Correct. Was it because they didn’t have ice cream and high fructose corn syrup? Correct.

It was all of those things, but it ultimately boiled down to eating a rainbow diet of hundreds of different vegetables, nuts, seeds, and berries.

So, let’s get specific so you too can reap the benefits of a rainbow diet.

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What Makes Rainbow Foods So Healthful?

First off, you should eat as many kinds of fruits and vegetables as you can.

The thing most folks don’t realize is fresh, organic, plant-based foods are the most powerful medicine available to you. The greater the variety, the more health benefits you’ll experience. In other words what’s at the end of your fork is the most powerful weapon you have in the battle against chronic degenerative disease and cancer.

Much of the healing power behind these foods stems from something called “nutrigenomics”.

This is a big term, but the concept is pretty simple. It describes how the foods you eat alter the expression of your genes… and how your genes respond to the compounds found in those foods.

And it’s great news for you…

It means even if you’ve inherited a “bad” gene, the food you eat can turn it on or off.

For example, think about what genes you’re activating when you sit down and eat a bag of chips with supermarket dip and a soda. Then, consider the benefit of replacing that snack with a bowl of mixed berries and a cup of green tea, or some crunchy organic veggies with a healthy hummus or guacamole or other healthy dip.

Right now, scientists across the globe are working on ways to incorporate nutrigenomics to treat and prevent today’s most common chronic diseases, including certain cancers.

But there are many ways you can start putting this concept to good use right away.

Four Powerful Foods that Activate Healthy Genes

One thing’s for certain… fruits, vegetables, herbs and other natural compounds can play a mighty role when it comes to activating genes that are protective for your health.

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For example, foods that contain sulforaphane can turn on a gene that prevents tumor growth. This explains why cruciferous vegetables like broccoli, brussel sprouts, kale, cauliflower, radishes and cabbage are such potent cancer fighters.

A substance called EGCG in green tea also works to keep tumors at bay. With green tea, I recommend loose organic green tea leaves rather than a supplement.

Resveratrol, found in grape skins, is especially notable for being able to turn on your SIRT1 gene. This is commonly called the “youth gene”. It helps your body produce more mitochondria — the energy factories that keep your cells powered up to youthful levels.

And if you like curry, you’re doing a world of good for your genes. Curcumin (the main compound in turmeric) appears to have numerous epigenetic effects. It works on many different levels to change gene expression related to cancer, inflammation and Alzheimer’s disease.

But don’t restrict yourself to these foods alone.

The Diet that Turns Bad Genes Off and Good Genes On

It’s a known fact that gene expression varies widely between people who eat an Americanized diet, and those who eat a Mediterranean diet or — as I like to call it — a Rainbow Diet.

So if you really want to change the expression of your genes for a healthier and more vigorous life, I recommend this way of eating.

Remember my story about the cancer patients who reversed their disease? Well, researchers found similar results with prostate cancer patients.

In fact, they were able to identify 453 “bad genes” — ones causing the cancer to grow — that were switched “off” by this way of eating.

This way of eating can also turn “on” good genes that play a role in protecting against cardiovascular disease, inflammation and the build-up of arterial plaque.

If you want to turn the switch on your genes, make organic, antioxidant-rich fruits and vegetables the central focus of your meals. Include all colors of the rainbow.

It’s also a good idea to replace your vegetable oil with extra virgin olive oil. Then, top everything off with zesty herbs, spices and tree nuts that are filled with anti-inflammatory phytonutrients.

When it comes to protein choices, seafood should be your number one pick. Select small, wild-caught fish like sardines, mackerel, salmon, herring and trout. On those occasions when you want a little red meat, make sure it’s grass-fed.

And don’t hesitate to enjoy a glass of red wine or green tea with your meals. These both contain compounds that have a very positive influence on your genes.

For even more power over your genes, stay physically active. Develop good sleep habits and take control of your stress levels. Avoid too much alcohol and don’t smoke.

The healthier the choices you make, the better chances you have of activating genes that protect your health… and turning off the ones that are harmful.


Khan MA, et al. Sulforaphane Reverses the Expression of Various Tumor Suppressor Genes by Targeting DNMT3B and HDAC1 in Human Cervical Cancer Cells. Evid Based Complement Alternat Med. 2015; 2015: 412149.

Nandakumar V, et al. (-)-Epigallocatechin-3-gallate reactivates silenced tumor suppressor genes, Cip1/p21 and p16INK4a, by reducing DNA methylation and increasing histones acetylation in human skin cancer cells. Carcinogenesis. 2011 Apr;32(4):537-44.

Ungvari Z, et al. Mitochondrial protection by resveratrol. Exerc Sport Sci Rev. 2011 Jul;39(3):128-32.

Boyanapalli SS, et al. “Curcumin, the King of Spices”: Epigenetic Regulatory Mechanisms in the Prevention of Cancer, Neurological, and Inflammatory Diseases. Curr Pharmacol Rep. 2015 Apr;1(2):129-139.

Ornish D,et al. Changes in prostate gene expression in men undergoing an intensive nutrition and lifestyle intervention. Proc Natl Acad Sci U S A. 2008 Jun 17;105(24):8369-74.

Castañer O, et al. In vivo transcriptomic profile after a Mediterranean diet in high-cardiovascular risk patients: a randomized controlled trial. Am J Clin Nutr. 2013 Sep;98(3):845-53.

Camargo A, et al. Expression of proinflammatory, proatherogenic genes is reduced by the Mediterranean diet in elderly people. Br J Nutr. 2012 Aug;108(3):500-8.