09/03/2026
🧬 What is MTHFR… and why does it matter for your health?
You may have heard people talking about MTHFR and wondered what it actually means.
In simple terms, MTHFR is an enzyme in your body that helps activate folate (vitamin B9) so your body can actually use it.
Think of it like a key that unlocks folate. Without the key, the door doesn’t fully open.
When MTHFR works properly, it converts folate into 5-MTHF — the active form your body needs for important processes like:
✔️ DNA repair and cell growth
✔️ Detoxification
✔️ Brain chemistry and mood balance
✔️ Hormone regulation
✔️ Healthy pregnancy and fetal development
✔️ Keeping homocysteine (an inflammatory marker) under control
⚠️ The catch?
Some people have genetic variations in the MTHFR gene. The most common ones are called C677T and A1298C.
If you carry one or two copies of these variants, your body may not convert folate efficiently.
This can mean your body struggles to produce enough active folate (5-MTHF).
💡 What can this affect?
When the folate pathway isn’t running smoothly, it can influence many areas of health, including:
• Fatigue and low energy
• Mood issues or anxiety
• Hormone imbalance
• Fertility and pregnancy health
• Cardiovascular health (through higher homocysteine levels)
• Detoxification capacity
🧠 The important thing to know:
Having an MTHFR variant is not a disease — it just means your body may need extra nutritional support or the right forms of B vitamins.
With the right testing and guidance, these pathways can often be supported very effectively.
✨ This is why understanding your genetics can be powerful — it helps personalise your health care rather than guessing.