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John O'Connor

John O'Connor is the founder of Gene Food, a nutrigenomic startup helping people all over the world personalize nutrition. John is the host of the Gene Food Podcast and a health coach trained at Duke's Integrative Medicine Program. Read his full bio here.

John O'Connor's Latest Articles

December 2, 2020

Dr. Dean Ornish vs. Dr. Mark Hyman: When Diet Experts Disagree

I had a call yesterday with a potential Gene Food investor here in Jackson Hole. About 5 minutes into the call, she told me she wasn’t sure why anyone would… Read More

eggs cholesterol
July 18, 2020

I Ate 21 Eggs a Week for One Month: This is What Happened to my Cholesterol

Before I get started with this blog post, I want to emphasize that the results I am seeing here, are likely not the results you will see. N=1 experiments have… Read More

privacy for dna test kits and deleting results
July 7, 2020

How Easy is it to Delete Genetic Data from Popular DNA Sites?

The direct to consumer genetic testing industry is here to stay, but sales have cooled recently, in part due to privacy concerns. How easy is to use a genetics product… Read More

May 29, 2020

How I Achieved My Lowest ALT Levels in 5 Years

Sugar, or sucrose if you want to get fancy, is comprised of both glucose and fructose at the molecular level. And although sugar is delicious, and fun to pass out… Read More

March 23, 2020

Why I Switched From Coffee to Matcha for my Morning Buzz

For the last year especially, I have been a coffee enthusiast like never before in my life. I’ve been buying “the good stuff” and even grinding my own beans. In… Read More

February 19, 2020

In Defense of DNA Diets (They Can and Do Work)

Have you been Googling “do DNA diets work?” If you have, you may have found an article written by Scientific American titled “Matching DNA to a Diet Does Not Work.”… Read More

Vitamin B12 Shots
January 22, 2020

Do Vitamin B12 Shots Have Benefits?

When I first became interested in health and wellness, I found tremendous benefit from B vitamin shots, which at the clinic I went to in La Jolla were a cocktail… Read More

Bowl of oatmeal with blueberries in it
November 22, 2019

Are Grain Free Diets Healthy?

Are grain free diets healthy, or do they increase the risk for heart disease? As we will learn in this post, the answer depends on a number of different factors… Read More

Screenshot of the oura ring dashboard
November 21, 2019

Why I Stopped Wearing an OURA Ring

We need good sleep to be healthy. This much is not in dispute. The question posed for my review of the OURA ring, a popular sleep tracking device, is whether… Read More

Photo depicting what bacteria looks like
November 4, 2019

What are the Health Benefits of Bifidobacterium Longum?

In a previous post I wrote about strains of probiotic bacteria that improve “brain power,” Bifidobacterium Longum (B. Longum) was featured prominently. Certain strains of B. Longum have indeed been… Read More

PCSK9 drugs
October 21, 2019

My Experience With Zetia

Ezetimibe, or “Zetia” for short is an important heart drug which helps people who hyper-absorb cholesterol (and plant sterol) from taking on more of these fats than their body can… Read More

Low histamine diets
October 6, 2019

Do Low Histamine Diets Really Work? Yes, But There are Limits

I once had a date tell me it was “the nerdiest thing she’d ever heard,” but yes, I actually moved from Austin, Texas back to New York City because I… Read More

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