Understanding Methylation
- Emma Hammond

- Oct 16
- 3 min read

When it comes to maintaining good health, most of us know the importance of eating well, exercising, and getting enough sleep. Yet, there’s a lesser-known process happening inside our bodies that influences everything from mood and energy to detoxification and gene expression — it’s called methylation.
What is Methylation?
Methylation is a vital biochemical process that takes place in every cell of the body, billions of times per second. In simple terms, it involves the transfer of a methyl group — one carbon atom and three hydrogen atoms — from one molecule to another.
This small but powerful action acts like a biological switch, turning specific processes in the body on or off. For example, methylation helps regulate gene activity, support neurotransmitter function, and manage the metabolism of toxins and hormones.
Why Methylation Matters
Healthy methylation is essential for many aspects of wellbeing, including:
DNA repair and gene regulation – maintaining cellular health and supporting healthy ageing.
Detoxification – assisting the liver in processing and removing toxins.
Energy production – supporting metabolism and mitochondrial function.
Mood and brain health – aiding the production of neurotransmitters such as serotonin and dopamine.
Cardiovascular health – helping to manage homocysteine levels, which when elevated can affect heart health.
When methylation is compromised, the effects can be widespread. Common symptoms linked to poor methylation include low energy, anxiety, poor concentration, hormone imbalance, and increased inflammation.
Factors That Affect Methylation
A range of genetic and lifestyle factors can influence how effectively your body methylates:
Genetic variations – Mutations or variations in genes such as MTHFR can reduce methylation efficiency.
Nutrition – Vitamins B2, B6, B12, folate, and minerals like zinc and magnesium are critical for methylation pathways.
Stress – Ongoing stress can deplete essential nutrients and methyl donors.
Toxin exposure – Alcohol, smoking, and pollutants can slow methylation and increase oxidative stress.
Ageing – As we get older, methylation patterns naturally shift, influencing how our genes behave.
Supporting Healthy Methylation
While we can’t change our DNA, there’s plenty we can do to optimise methylation through lifestyle and nutrition:
Eat a nutrient-dense diet – Include plenty of leafy greens, eggs, fish, legumes, and whole grains for methylation-supportive nutrients.
Cut down on alcohol and processed foods – These can impair methylation and deplete B vitamins.
Manage stress – Mindfulness, yoga, and restorative sleep all help preserve healthy methylation.
Consider functional testing – A Methylation DNA test can provide insight into how well your body makes and processes methyl groups.
Work with a practitioner – A qualified nutritional therapist or functional medicine practitioner can design a plan tailored to your individual needs.
DNA Testing with LifeCode GX
For those interested in exploring their genetic influence on methylation, LifeCode GX DNA testing offers a highly detailed look at your genetic profile.
By understanding your unique genetic blueprint, you can work with your practitioner to create a truly personalised nutrition and lifestyle plan — helping to optimise methylation, support long-term health, and enhance overall wellbeing.
The Takeaway
Methylation may be invisible, but its impact on health is vast. Supporting this essential biochemical pathway can help regulate gene expression, cellular repair, neurotransmitter synthesis, hormone regulation, immunity, energy production, cardiovascular function and ageing.
If you’re looking for deeper insight into how your genes affect your health, Methylation testing through LifeCode GX in the UK can be a valuable first step towards a more personalised approach to wellbeing.
Contact Emma at hello@emmahammondnutrition.com for more details or book a DNA test via the link below



