Pyridoxal-5-Phosphate
The active form of vitamin B6 that supports energy metabolism, nervous system function, and red blood cell formation.
Also known as: P-5-P • PLP • Active Vitamin B6
Overview
Pyridoxal-5-phosphate (P-5-P) is the active, coenzyme form of vitamin B6. This means that it is the form of vitamin B6 that the body can readily use without needing to convert it first. Vitamin B6 is an essential nutrient that is involved in over 100 enzymatic reactions in the body. It plays a crucial role in energy metabolism, nervous system function, and the formation of red blood cells. P-5-P is particularly important for the metabolism of amino acids, the building blocks of proteins. Supplementing with P-5-P may be beneficial for individuals who have difficulty converting vitamin B6 to its active form. This can be due to genetic factors, age, or certain health conditions. P-5-P is also being studied for its potential benefits for a variety of health concerns, including carpal tunnel syndrome, premenstrual syndrome (PMS), and certain types of anemia. It is available as a standalone supplement or in combination with other B vitamins.
Key Benefits
Supports Energy Metabolism
Plays a key role in the metabolism of carbohydrates, fats, and proteins.
Nervous System Function
Important for the synthesis of neurotransmitters, which are chemical messengers in the brain.
Red Blood Cell Formation
Involved in the production of hemoglobin, the protein in red blood cells that carries oxygen.
Dosage & How to Take
Dosage can vary depending on individual needs. It is best to follow the manufacturer's recommendations or consult with a healthcare professional.
| Purpose | Dose | Notes |
|---|---|---|
| General Health | 25-50 mg daily | A common dose for general support. |
Best Time to Take
Best taken with meals to improve absorption.
With or Without Food
Recommended
Forms & Bioavailability
| Form | Absorption | Best For | Notes |
|---|---|---|---|
| Capsules | High | Convenience and accurate dosing | Most common form. |
Side Effects & Safety
Common
- Generally well-tolerated.
Rare
- High doses of vitamin B6 can cause nerve damage.
Contraindications
- Individuals with Parkinson's disease who are taking levodopa should not take high doses of vitamin B6.
Interactions
High doses of vitamin B6 can reduce the effectiveness of levodopa.
Scientific Research
Vitamin B6
Vitamin B6 is a water-soluble vitamin that is naturally present in many foods, added to others, and available as a dietary supplement. It is the generic name for six compounds (vitamers) with vitamin B6 activity: pyridoxine, an alcohol; pyridoxal, an aldehyde; and pyridoxamine, which contains an amino group; and their respective 5'-phosphate esters. Pyridoxal 5'-phosphate (PLP) and pyridoxamine 5'-phosphate (PMP) are the active coenzyme forms of vitamin B6.
The effect of vitamin B6 on cognition
Vitamin B6 is important for cognitive function, and supplementation may be beneficial for individuals with cognitive impairment.
Food Sources
Products With Pyridoxal-5-Phosphate
7 products in our database contain this ingredient
Frequently Asked Questions
Medical Disclaimer
This content is for educational and informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen, especially if you have pre-existing health conditions or are taking medications. The statements on this page have not been evaluated by the Food and Drug Administration.