SP
StackPedia
All Supplements

Vitamin B5 (Pantothenic Acid)

vitamins

Pantothenic acid is an essential B vitamin that plays a critical role in energy metabolism and the synthesis of coenzyme A (CoA), which is vital for numerous biochemical pathways. It supports adrenal function, stress response, and the production of hormones and neurotransmitters. B5 is found widely in foods, and deficiency is rare in populations with adequate nutrition.

Ready to try Vitamin B5 (Pantothenic Acid)?

Shop top-rated Vitamin B5 (Pantothenic Acid) supplements on Amazon UK

Affiliate link — we may earn a small commission at no extra cost to you.

Benefits

Energy production and metabolism
Hormone and neurotransmitter synthesis
Adrenal gland support
Skin health and wound healing
Cholesterol and fat metabolism

Dosage

Typical Dose

5-10 mg daily

Upper Limit

1,000-2,000 mg daily (tolerable upper limit not established)

Timing

With meals for optimal absorption

Forms & Bioavailability

Calcium Pantothenate

Standard form with good absorption; most commonly used in supplements

Panthenol

Precursor form converted to pantothenic acid in the body; used in topical applications

Pantothenic Acid

Free form with high bioavailability; rapidly absorbed in the intestines

Side Effects

Mild gastrointestinal upset at high doses
Diarrhoea (rare, usually at doses exceeding 10 grams)
Skin irritation (topical applications)

Interactions

Anticonvulsant medications may increase requirements
Sulphonamide antibiotics may reduce pantothenic acid synthesis by gut bacteria
Levodopa absorption may be reduced with high-dose supplementation

Research Summary

Pantothenic acid is well-established as essential for human health, though clinical research on supplementation beyond basic nutritional requirements remains limited. Studies suggest potential benefits for athletic performance, skin conditions, and stress management, though evidence quality varies. Most research supports that adequate B5 intake is important for optimal health rather than megadose supplementation providing additional benefits.

The Bottom Line on Vitamin B5 (Pantothenic Acid)

Vitamin B5 (Pantothenic Acid) is well-researched with strong evidence supporting its primary benefits.It is most commonly used for energy production and metabolism and hormone and neurotransmitter synthesis. As with any supplement, individual results vary. Start with the lower end of the dosage range and assess for 4-8 weeks before adjusting.

About Our Research

This profile is compiled from peer-reviewed research published on PubMed, the NIH Office of Dietary Supplements, and established nutritional science databases. Dosages reflect clinically-studied amounts from human trials where available. We update profiles as new research emerges. This is not medical advice — consult a healthcare professional before supplementing.

Top Rated Vitamin B5 (Pantothenic Acid) on Amazon UK

We recommend choosing products with 4+ star ratings and verified reviews. Look for third-party tested brands.

Affiliate links — we earn a small commission at no extra cost to you.

Where to Buy Vitamin B5 (Pantothenic Acid)

We recommend buying from reputable retailers. Check reviews and third-party testing.

Affiliate links — we may earn a commission at no extra cost to you.

Disclaimer: This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement, especially if you have existing health conditions or take medication.

Popular Supplements on Amazon

As an Amazon Associate we may earn from qualifying purchases.