Can genetic testing tell me what to eat, exercise, and take? - Aspire Natural Health

Can genetic testing tell me what to eat, exercise, and take?

In this Episode Dr. Gerstmar discusses:
-Can genetic testing tell us what to eat, how to exercise, and what supplements we should be taking?
-How many genes humans ‘should’ have and have many we really do?
-Where genetic testing is right now in 2018 and where it may be going in the future!



To watch Dr. Gerstmar’s Ancestral Health Symposium talk on MTHFR click HERE


Hey Folks,

It’s Dr. Gerstmar from Aspire Natural Health. And in this quick video, I want to answer a question I recently got from an awesome patient we’re working with.

They asked me, “can genetic testing tell me what I’m supposed to be eating and what supplements I should be taking?”

That’s a great question. We do see people and companies on the internet telling us that with our genetic information they can tell us what type of diet we should follow, what type of exercise we should be doing, what type of supplements we should be taking and more.

How accurate is this?

First, let’s talk just a little bit more about genetics. Remember back to your high school biology classes. Our genetics are the ‘cookbook’ of us. Just like a cookbook contains all the recipes which give you the steps you need to make a meal, our genetics contain all of the instructions to make us. So there’s a recipe to make your liver, and your eyeballs, and every other piece of you.

Now to have enough ‘recipes’ or genes to make a human being it was estimated that you’d need between a million and 100,000 different genes, so it was a big shock that the Human Genome project found that humans have only around 20,000 genes.

That means that things are significantly more complicated than we thought. It’s not as simple as having one recipe for each piece of a human. What we’ve found is that our bodies use different recipes and mix and match them with one another. For example, the body may follow the first 3 steps of one recipe, then the next 5 of another unless recipe three is involved when it may skip those steps, then finish thing up with 2 steps from recipe 4 and 5. As you can see, it’s incredibly complicated.

What this means is that while there are a handful of diseases with very clear cut genetics such as sickle cell anemia and cystic fibrosis, they are rare. Most of the diseases that we are dealing with such as different autoimmune diseases, diabetes, heart disease, and cancer, do NOT have a simple genetic cause.

In fact, studies on obesity have found that the most relevant genetic links account for about 3% of the difference in bodyweight. That means that ‘fat genes’ account for an incredibly small amount of fatness.

So the reality is that it’s really complicated. When you hear things like, you have this gene therefore you should do this, the fact is that’s way too simplified.

When genetic testing because widely available a few years ago, I was one of the practitioners on the leading edge of it, and we began routinely looking at the genetics of the people we were working with.

We began looking at things like MTHFR and other mutations and adjusting treatment plans based on those, and what we found was for the most part really disappointing.

I don’t want to say there’s no value right now in genetics, there definitely is. But we want to be careful not to overstate it. If you have an MTHFR mutation, it’s definitely worth a trial of methylated folate, and we’ve seen it absolutely change people’s lives for the better. If you’d like to learn more about MTHFR, we’ll include the link to my Ancestral Health Symposium talk and you can check it out there.

So there you have it, let’s sum up…

Genetics are very complicated. There are a handful of ‘simple’ genetic diseases and issues out there, but for most of us, with most of the stuff we’re dealing with, there are no simple answers in genetics.

As of the recording of this video, late in 2018, I believe those people and services offering to give you tailored diet, supplement, and lifestyle advice based solely on your genetics are on really shaky ground. The science is just not there yet, and while we at Aspire Natural Health still interpret genetic testing, we do far less of it than we used to, just because we found it’s not nearly as useful as we hoped.

Now I expect in the years to come we will continue to learn more and more about our genetics and how they affect us, and I hope one day you’ll be able to go in, they’ll do a swab of your cheek, run your genetics through an analyzer and be able to tell you exactly what you should be eating, and doing, and taking.

But that day is not here yet, and I advise you to stay away from services that are saying they can offer that for you. I hope that helps.

If you’d like to know more about your thyroid, I’d like to offer you an audio recording of a lecture I gave on what the real holistic treatment of your thyroid looks like. All you need to do is click the button below and fill out the short form and we’ll happily send that to you for FREE. So please, click down below.

At Aspire Natural Health we are experts at treating digestive issues and autoimmune diseases. If that’s you, we’d love to connect.

We offer a no-obligation no-pressure chat to see if we can help you, and if we’re the right fit to work together.

If we are, we’ll move forward, and if we’re not, we’ll do our best to connect you with the person who can best help you.

You have nothing to lose, so call us now at 425-202-7849 or email us at

Until next time folks…Take care!


At Aspire Natural Health we are experts at helping people suffering with digestive issues and autoimmunity.

Are you looking for help?

Email us at or call us at 425-202-7849.

The first step of our process is to see if we’re a good fit for one another. If we are, we’ll talk about next steps. If not, that’s okay, and we’ll do our best to help you find the right person.

Everything is no-obligation and no-pressure, so you don’t have to worry. You have nothing to lose!

Call us at 425-202-7849 or email us now!

    Another interesting post:

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