DNA & Methylation: Could Your Genes Be Part of the Bigger Picture?
Have you ever wondered why two people can eat the same diet, live a relatively similar lifestyle, and yet feel completely different?
One person thrives on a particular way of eating, while another feels tired, bloated or foggy.
One person seems to tolerate stress relatively well, while another feels like their nervous system is permanently stuck in “please send help” mode.
And then there are those frustrating health patterns where you’re doing “all the right things” - eating well, exercising, taking supplements, trying to manage stress - but something still doesn’t quite add up.
This is where DNA and methylation can become an interesting piece of the puzzle.
Not the whole puzzle. And certainly not a crystal ball for your future health.
But potentially another layer of information that can help us understand how your body is wired and where you may have individual nutritional and lifestyle considerations worth paying attention to.
Your DNA is more than a genetic blueprint.
You probably know that DNA contains your genes - the instructions that help determine how your body is built and how it functions.
But genes aren't simply an on/off switch.
The way your genes are expressed can be influenced by a whole range of factors, including nutrition, diet, stress, sleep, environmental exposures/toxins, physical activity and other aspects of your lifestyle.
This is one reason why genetics doesn't equal destiny.
You can have a particular genetic variation without developing a particular health problem.
And you can have very similar genes to someone else while having a completely different health experience.
Your genes are part of the story - but they aren't the entire story.
So, what exactly is methylation?
Methylation is involved in A LOT of things happening behind the scenes in your body.
And when I say a lot, I mean a lot.
It’s a normal biochemical process happening throughout your body, all. of. the. time. It plays a BIG part when it comes to how you feel, think and function.
I’m low-key obsessed with all things methylation, as I see it SO much in clinic! Here is why the obsession is real…
Let’s break it down:
neurotransmitter metabolism - think dopamine, serotonin, noradrenaline and friends. These guys are involved in mood, motivation, focus and stress response. Methylation is involved in the production and breakdown of these neurotransmitters, so yep - there's a pretty interesting connection between your genes, your biochemistry and the way your brain functions.
DNA - your DNA isn't just sitting there looking pretty. It's constantly being copied, repaired and maintained as your cells grow and renew themselves. Methylation helps with some of this behind-the-scenes housekeeping.
hormone metabolism - methylation is involved in how your body processes and metabolises certain hormones. So when we're looking at things like PMS, cycle changes, oestrogen-related symptoms or those “what the heck are my hormones doing?” moments, this can be another piece of the puzzle
detoxification pathways - your body is constantly processing things it needs to get rid of, including hormone metabolites and various compounds you're exposed to through your environment (hello mould, pesticides & friends). Methylation is one of the pathways involved in this process. No, your genes don't determine whether you can detox or not - but they can give us some pretty useful clues about how certain pathways may be working (or not) for you.
energy production - methylation is connected with pathways involved in cellular energy production. So when you're living on coffee, dragging yourself through the afternoon and wondering why you're SO bloody tired all the time, this is one of the many pieces we can investigate.
inflammation & oxidative stress - our body is constantly dealing with stressors, producing free radicals and working to keep things balanced. Methylation is involved in some of the systems that help manage this. Basically, another part of your body's never-ending effort to keep everything ticking along nicely (in constant awe of how intelligent the body really is!).
gene expression - this is where things get really cool (*showing my nerdy self*). Methylation can help influence which genes are switched on or off. Your DNA might be the instruction manual, but gene expression is part of how your body decides which instructions to actually read. Your environment, nutrition and lifestyle can all interact with these processes too.
nutrients - folate, B12, choline and other B vitamins are all closely involved in methylation. And this is where personalised nutrition gets really interesting. Your genetic variations can give us clues about how you may process and utilise certain nutrients - which means your nutritional needs don't necessarily have to look exactly like everyone else's.
And this is where things get really interesting, well for me anyway!
How well these processes work can be influenced by your genes, as well as your nutritional status, lifestyle and environment.
So when we look at methylation genetics, we're not simply asking:
“What genes do you have?”
We're asking:
“What might your genetic variations tell us about how your body handles certain biochemical processes - and how could this information be relevant to your nutrition and lifestyle?”
What are SNPs?
When you have a DNA test, you'll often hear the term SNP (pronounced “snip”).
Basically, SNPs are tiny genetic variations that make us all a little bit different (and unique!).
Think of your DNA as an enormous instruction manual for your body.
Most of that manual is pretty much the same from person to person - but there are tiny differences in certain places.
Some of these variations probably don't make much difference at all. Others can influence how efficiently certain enzymes or biochemical pathways work.
For example, a genetic variation may affect how your body processes or utilises a particular nutrient.
And this is REALLY important:
Having a SNP does not automatically mean something is wrong with you.
It doesn't mean a pathway is “broken”.
It doesn't mean you have a disease.
And it definitely doesn't mean you've just discovered some terrible genetic fate.
A genetic variation is simply a piece of information.
And it's what we do with that information - and how we interpret it alongside the rest of your health picture - that actually matters.
Why would you want to know your genetic variations?
This is where I think DNA testing gets interesting.
Instead of taking the same one-size-fits-all approach to everyone, we can start asking some much more personalised questions.
For example:
Could your genetics give us clues about your nutritional needs?
Are there certain pathways that might be worth paying a little more attention to?
Could your genetics help explain why you seem to respond really well to certain nutritional strategies - but not so much to others?
Are there lifestyle factors that may be particularly important for supporting your long-term health?
And perhaps most importantly:
Could this information help us make your health plan more personalised to YOU?
Rather than throwing 15 supplements at a problem and hoping something sticks (we've all been there 🙃), we can look at your genetic information alongside your symptoms, health history, diet, lifestyle and - where appropriate -pathology or other functional testing.
It's about putting more pieces of the puzzle together, rather than trying to solve everything from one piece of information.
DNA testing isn't about predicting your future
This is a BIG one.
A DNA test shouldn't be used to tell you:
“You have this gene, therefore you're going to develop this condition.”
That's simply not how genetics works.
Your health is influenced by a complex interaction between your genetics, nutrition, lifestyle, environment and a whole bunch of other factors.
You can't change your DNA.
But you can influence many of the things interacting with it.
And that's where personalised nutrition and lifestyle strategies come in.
Rather than looking at a genetic variation and thinking “oh crap…”, we can ask:
“Okay, is there anything here that I can actually DO something about?”
That's the part I find so useful.
Genetic information can highlight potential areas of susceptibility or nutritional relevance, giving us another layer of information to consider - particularly when there are things we can actually modify.
What can DNA and methylation testing tell you?
Depending on the test, genetic analysis can provide information across a range of areas relevant to health.
This can include pathways involved in:
methylation and folate metabolism
detoxification
inflammation and oxidative stress
energy production
neurotransmitter metabolism
hormone metabolism
cardiovascular health
cognition
digestion
fertility and reproductive health
nutrient metabolism
But here's the thing…
The value isn't in receiving a giant report full of gene names, SNPs and acronyms and thinking:
“Cool… but what the heck am I supposed to do with this?”
The value comes from interpreting that information in context.
Your genetics need to be considered alongside YOU.
Your symptoms.
Your (and your family) history.
Your diet.
Your lifestyle.
Your goals.
Your pathology.
And all the other information we have available.
And this is where the “root cause” conversation comes in
If you've been struggling with something for a while, it's completely understandable to want to know why.
Why am I exhausted when my blood tests are “normal”?
Why do I feel so affected by stress?
Why are my hormones doing this?
Why is my digestion all over the place?
Why do I feel like I'm doing everything right but still don't feel like myself?
Now, there isn't always one single “root cause”.
Health is complex.
But sometimes looking at another layer of information can help us understand why certain patterns may be showing up for you and where there may be opportunities to support the underlying processes involved.
And THAT is the part I find so fascinating about personalised support.
It's not about finding a perfect genetic profile.
It's about understanding your individual starting point and working with your biology, rather than throwing the exact same approach at everyone.
Your genes are not your fate
If there's one thing I want you to take away from all of this, it's this:
Your DNA is information - not a prediction.
Finding a genetic variation doesn't mean something bad is going to happen.
It doesn't mean you're destined to develop a particular disease.
And it certainly doesn't mean you need a cupboard full of supplements.
What it can do is give us another layer of information to consider when we're looking at your nutrition, lifestyle and long-term health.
For me, that's the exciting part.
Test, don't guess.
Gather the information.
Look at the bigger picture.
And then work out what actually matters for you.
Curious about your own DNA & methylation?
I've created a DNA & Methylation Health Package for people who want to go deeper than generic health advice and better understand their individual genetic and nutritional picture.
The process includes your DNA testing, an in-depth review of your results and a personalised consultation where we translate the science into practical recommendations you can actually use.
Let’s be honest, a 100-page genetic report isn't particularly helpful if you don't know what the heck to do with it.
The goal isn't to overwhelm you with gene names and abbreviations.
It's to help you understand your body, your potential areas of susceptibility and the practical things you can do to support your health.
If you're curious about what your own genetic blueprint might tell you, you can explore the DNA & Methylation package!
Big love,
Carolyn xx