Concerns about vitamin B6 toxicity are growing in Australia and beyond. The Therapeutic Goods Administration (TGA) recently admitted it may have underestimated side effects linked to high doses of vitamin B6.
A report by ABC this week revealed alarming findings. Up to 4.5 per cent of blood samples tested across Australia indicated levels of vitamin B6 associated with nerve damage.
These results raise crucial questions. How much it is safe? And what happens if you take too much?
What Is Vitamin B6?
Vitamin B6, also known as pyridoxine, is a water-soluble vitamins. It helps your body metabolise proteins, carbohydrates, and fats.
It’s also vital for producing neurotransmitters, the chemical messengers in your brain. These help regulate mood, sleep, and nerve function.
You can get vitamins B6 from foods like fish, poultry, potatoes, chickpeas, and bananas.
However, some people take supplements to boost their intake.
When Vitamin B6 Turns Toxic
In moderate amounts, vitamin B6 is safe. But excessive intake can become dangerous.
High doses from supplements—not from food—are the main concern.
“Vitamin B6 toxicity can cause serious nerve damage if taken in high amounts for a long time,” warns Dr. Lisa Nguyen, a Melbourne-based clinical nutritionist.
Even doses above 200 milligrams per day can cause symptoms in some individuals.
Three Symptoms of Vitamin B6 Toxicity
Experts urge people to watch for these three key warning signs:
1. Nerve Damage (Peripheral Neuropathy)
This is the most severe side effect. It includes tingling, numbness, or burning sensations in the hands and feet.
If untreated, nerve damage can become permanent.
2. Loss of Balance and Coordination
Vitamin B6 toxicity can affect the nervous system. People might feel unsteady on their feet or struggle with fine motor skills.
“This can severely impact daily activities, from writing to walking,” said Dr. Nguyen.
3. Extreme Fatigue and Weakness
Toxicity can cause general weakness and constant tiredness. It might feel like you have no energy, no matter how much you rest.
Why Supplements Pose the Risk On Vitamin B6
Most people get enough vitamins B6 from a balanced diet.
But high-dose supplements are widely sold. Some are marketed for boosting energy, improving mood, or supporting nerve health.
The TGA is considering limiting sales of these high-dose products.
If you’re taking a supplement, read the label.
“More is not always better when it comes to vitamins,” said Dr. Nguyen.
When to See a Doctor
If you regularly take vitamin supplements, talk to your doctor or pharmacist.
Stop immediately if you experience any unusual symptoms.
Dr. Nguyen stresses the importance of blood tests for those taking supplements long-term.
Safe Intake Levels Of Vitamin B6
The recommended daily intake for adults is about 1.3 to 2 mg of vitamin B6.
Consuming levels far above that can lead to vitamin B6 toxicity over time.
The Bigger Picture
Vitamins supplements can be beneficial. But misuse can harm your health.
Always check dosage guidelines and seek medical advice.
For more details, visit the Therapeutic Goods Administration’s official website for updates on supplement safety.
You can also read related articles on for insights on nutrition and wellness.
A Final Note On Vitamin B6
Vitamin B6 is essential. But too much can be dangerous.
Don’t ignore symptoms like tingling, balance issues, or fatigue.
Stay informed. Stay safe. And consult your healthcare provider before making changes to your supplement routine.