vitaminNot FDA-approvedOTC supplementMarketed in the US as a dietary supplement, not an FDA-approved drugTrue dietary deficiency is rare because pantothenic acid is widespread in food
Vitamin B5 (Pantothenic Acid)Benefits, Dosage & Interactions
Also known as: Pantothenic Acid, B5
Vitamin B5, also known as pantothenic acid, is an essential water-soluble vitamin. It is vital for numerous bodily functions, playing a key role in energy metabolism, the synthesis of hormones, and the formation of red blood cells. Research on Vitamin B5 (Pantothenic Acid) focuses on tissue recovery and heart and circulatory health.
How much Vitamin B5 (Pantothenic Acid) do people take?
The acne trial used a proprietary pantothenic acid complex delivering roughly 2.2 g/day of pantothenic acid-equivalent supplement; typical over-the-counter pantothenic acid products are labeled 250–500 mg/day. Route reported: Oral. Frequency reported: Twice daily in the acne trial. These are amounts documented in the cited studies and labels for Vitamin B5 (Pantothenic Acid) — they are reported for reference, not a recommendation. Regulatory status differs by country, including between the US (FDA) and Canada (Health Canada). Confirm any amount with a licensed clinician before you take it.
See the full reported protocol and its sourcesResearched by DoseRoutine Research TeamReviewed for accuracy by Nicholas Alexander, RSE, SO, PMPLast updated Educational reference only — not medical advice. Always confirm dosing and safety decisions with a licensed clinician.
Evidence: Moderate — One published human randomized trial; results not yet replicated.
Evidence strengthModerate · 3/4
PreclinicalStrong human evidence
One published human randomized trial; results not yet replicated.
Whole-body biological half-life
Not applicable
Typical timing
in the morning
Food rule
with food
Default unit
mg
What published protocols report
Ranges documented in the literature, shown for reference. DoseRoutine does not recommend an amount — your prescriber or the product label sets the dose.
Reported for Vitamin B5 (Pantothenic Acid) in the cited sources. Published ranges are not dosing advice.
References & evidence
Documents the Vitamin B5 (Pantothenic Acid) entry is written from. Each number matches an inline marker above.
- [1]A randomized, double-blind, placebo-controlled study of a novel pantothenic acid-based dietary supplement in subjects with mild to moderate facial acneYang M, Moclair B, Hatcher V, et al. · Dermatology and Therapy · 2014 · Peer-reviewed · PMID 24831048
- [2]B Vitamins and the Brain: Mechanisms, Dose and Efficacy--A ReviewKennedy DO · Nutrients · 2016 · Peer-reviewed · PMID 26828517
- [3]Vitamin therapy in the absence of obvious deficiency. What is the evidence?Ovesen L · Drugs · 1984 · Peer-reviewed · PMID 6230219
References & Evidence
Sources on this page that document Vitamin B5 (Pantothenic Acid) dosing, timing and safety.
- [1]National Center for Biotechnology Information View source
Educational information only — not medical advice. Dose ranges vary by person, indication and prescriber.
What is Vitamin B5 (Pantothenic Acid) studied for?
Deficiency-driven — not a performance booster
Vitamins primarily help when you're actually low. Extra doses on top of normal levels rarely add strength, endurance, or fat loss, and some fat-soluble vitamins (A, D, E, K) can build up to harmful levels.
- Confirm a deficiency with bloodwork before supplementing long-term (e.g. 25(OH)D for vitamin D, B12/folate, ferritin, magnesium RBC).
- Talk to your doctor or a registered dietitian about the right dose for your labs, medications, and conditions — especially in pregnancy, kidney/liver disease, or while on blood thinners.
- Re-test every 3–6 months and stop or lower the dose once levels are in range.
Educational information only — not medical advice. See our AI & medical policy.
What is Vitamin B5 (Pantothenic Acid)?Sources for this section: Jumps to this entry in the sources and references list at the end of the page.
Vitamin B5, also known as pantothenic acid, is an essential water-soluble vitamin. It is vital for numerous bodily functions, playing a key role in energy metabolism, the synthesis of hormones, and the formation of red blood cells. The name "pantothenic" comes from the Greek word "pantos," meaning "everywhere," reflecting its widespread presence in various foods. As a water-soluble vitamin, B5 is not stored in significant amounts in the body, meaning a regular dietary intake is necessary for proper function (NIH Office of Dietary Supplements). Pantothenic acid is a precursor to coenzyme A (CoA), a crucial molecule involved in many biochemical reactions. It is widely available in a variety of foods, making deficiency rare in well-nourished individuals.
Why vitamins for endurance: Pantothenic acid is the backbone of Coenzyme A, which fuels fat and carb oxidation. Deficiency is rare, so benefit is mostly limited to correcting shortfalls.
References: NIH ODS Pantothenic Acid fact sheet (2021).
What does the research say about Vitamin B5 (Pantothenic Acid)?
Tap a section to expand.
The primary mechanism of action for Vitamin B5 centers around its role as a precursor to coenzyme A (CoA). Once ingested, pantothenic acid is converted into pantetheine, which is then converted into CoA within the body. CoA is an indispensable coenzyme involved in a multitude of enzymatic reactions, primarily associated with metabolism. It is central to the Kreb's cycle (citric acid cycle), the body's main energy-generating pathway, where it assists in breaking down carbohydrates, fats, and proteins into energy (ATP). CoA is also critical for the synthesis of fatty acids, cholesterol, steroid hormones, neurotransmitters, and hemoglobin. Additionally, it plays a role in the detoxification of various substances within the liver. Without adequate pantothenic acid, the production of CoA would be impaired, leading to disruptions in these essential metabolic and synthetic pathways (PubChem).
Source for this section: Sources for How does Vitamin B5 (Pantothenic Acid) work?: Jumps to this entry in the sources and references list at the end of the page.
Vitamin B5 contributes to overall health and several specific functions:
* **Energy Metabolism:** As a key component of coenzyme A, pantothenic acid is essential for the metabolism of carbohydrates, fats, and proteins, converting them into usable energy for the body. This supports general vitality and cellular function (NIH Office of Dietary Supplements).
* **Hormone Synthesis:** It plays a role in the synthesis of steroid hormones, including those produced by the adrenal glands, which are involved in stress response and various physiological processes (MedlinePlus).
* **Red Blood Cell Formation:** Vitamin B5 participates in the formation of red blood cells, which are responsible for transporting oxygen throughout the body.
* **Neurotransmitter Production:** It is involved in the synthesis of certain neurotransmitters, chemical messengers that play a role in brain function and mood regulation.
* **Skin Health:** Some research suggests that pantothenic acid may support skin health and wound healing, though more extensive studies are needed to confirm these effects (Cochrane).
* **Cholesterol Metabolism:** Vitamin B5 is involved in the synthesis and breakdown of cholesterol, influencing lipid profiles. Studies have investigated its potential role in maintaining healthy cholesterol levels, especially in its pantethine form (Examine.com).
The evidence supporting the roles of Vitamin B5 in human health is extensive and well-established, largely due to its fundamental role in coenzyme A formation. Nutritional science generally recognizes pantothenic acid as essential for basic metabolic functions. Observational studies and controlled trials have investigated specific applications.
Regarding energy metabolism, its role is foundational in biochemistry textbooks, with its participation in the Kreb's cycle being a central dogma of cellular energy production (PubChem). Evidence for its involvement in hormone and neurotransmitter synthesis is also well-documented in metabolic pathways (MedlinePlus).
Pantothenic acid's impact on lipid metabolism, particularly in its pantethine form, has been a subject of specific research. For instance, some clinical trials have explored the effects of pantethine supplementation on blood lipid profiles. A meta-analysis of several studies, for example, suggested that pantethine might contribute to modest reductions in total and LDL cholesterol (Examine.com). However, the overall conclusion from such studies often emphasizes that these effects are typically observed with the pantethine derivative rather than pantothenic acid itself, and the magnitude of effect can vary. These studies contribute to understanding the potential adjunctive uses within a broader health management plan.
While pantothenic acid is sometimes discussed in relation to skin health and wound healing, the evidence base for these specific benefits is less conclusive than for its metabolic roles. Some preliminary research has explored its topical application or oral supplementation for acne or skin barrier function, but further robust clinical trials are needed to draw definitive conclusions (Cochrane). Generally, severe pantothenic acid deficiency, while rare due to its widespread presence in foods, would lead to profound metabolic disturbances known as the 'burning feet syndrome,' characterized by neurological symptoms, fatigue, and gastrointestinal issues, which readily respond to supplementation (NIH Office of Dietary Supplements).
Vitamin B5 is generally considered safe when consumed in amounts typically found in food or in standard supplemental doses. Due to its water-soluble nature, excess amounts are usually excreted in the urine. However, very high doses, typically exceeding several grams per day, might lead to mild gastrointestinal disturbances such as diarrhea or nausea in some individuals (NIH Office of Dietary Supplements). Allergic reactions to pantothenic acid are rare but possible, as with any compound. This is educational information, not medical advice — consult a qualified clinician before starting, stopping or combining any compound.
Individuals with pre-existing gastrointestinal conditions may experience increased sensitivity to higher doses of Vitamin B5. While there are no established upper intake levels due to its low toxicity, it is generally advisable to avoid excessively high doses. People with impaired kidney function should exercise caution and consult a healthcare professional before taking supplements, as the body's ability to excrete water-soluble vitamins might be altered. Always discuss supplementation with a healthcare provider, especially if you have chronic health conditions or are undergoing medical treatment. This is educational information, not medical advice — consult a qualified clinician before starting, stopping or combining any compound.
There are no absolute contraindications for Vitamin B5 (pantothenic acid) at typical dietary or supplemental levels, given its essential role and low toxicity. However, individuals with known hypersensitivity or allergic reactions to pantothenic acid or any of its derivatives should avoid supplementation. As with all supplements, individuals with severe kidney disease should consult a physician before use due to altered excretion patterns. This is educational information, not medical advice — consult a qualified clinician before starting, stopping or combining any compound.
Vitamin B5 is generally well-tolerated and does not have many significant interactions with medications or other supplements. However, high doses of certain B vitamins, including B5, might theoretically interact with certain medications that affect vitamin metabolism or absorption, though such interactions are largely theoretical and not clinically significant at typical doses. Pantothenic acid might alter the absorption or effectiveness of some antibiotics like tetracycline due to mineral chelation, a general caution for B vitamins taken concurrently with antibiotics. It is always prudent to inform your healthcare provider about all supplements you are taking to identify any potential interactions, especially if you are on prescription medications. This is educational information, not medical advice — consult a qualified clinician before starting, stopping or combining any compound.
Vitamin B5, being a water-soluble vitamin, does not require specific timing relative to meals for optimal absorption. It can be taken at any time of day. However, some individuals prefer to take it with food to minimize any potential, albeit rare, mild gastrointestinal upset. Many individuals choose to take it in the morning as part of a daily supplement regimen, often alongside other B vitamins.
Source for this section: Sources for When should you take Vitamin B5 (Pantothenic Acid)?: Jumps to this entry in the sources and references list at the end of the page.
Put it into practice
Reading about Vitamin B5 (Pantothenic Acid) is the first step — DoseRoutine helps you act on it. These free tools turn what you just learned into a routine.
What interacts with Vitamin B5 (Pantothenic Acid)?
| Interacts with | Severity | Type | What happens | What to do |
|---|---|---|---|---|
| Any vitamin + medication | Note | Category ruleConfidence: theoretical | Certain vitamins interact with specific medications (e.g., vitamin K with blood thinners).Source pending | Specific pairs are checked against a licensed source; confirm with your provider. |
Frequently asked questions about Vitamin B5 (Pantothenic Acid)
Deficiency in Vitamin B5 is exceedingly rare because it is widely available in many foods. However, severe deficiency, typically only seen in cases of extreme malnutrition, can lead to symptoms such as fatigue, irritability, insomnia, vomiting, stomach pains, and a burning sensation in the feet, sometimes referred to as 'burning feet syndrome' (NIH Office of Dietary Supplements).
Vitamin B5 is essential for the production of adrenal hormones, which play a role in the body's response to stress. While it is a necessary component for healthy adrenal function, supplemental Vitamin B5 is not a direct treatment for stress, and its effect on psychological stress in healthy individuals is not well-established (MedlinePlus).
Vitamin B5 is considered very safe, and there is no established upper intake level primarily because excess amounts are readily excreted in the urine. However, extremely high doses, far beyond typical supplemental amounts (e.g., many grams per day), could potentially lead to mild digestive issues like diarrhea (NIH Office of Dietary Supplements).
Generally, Vitamin B5 has few significant interactions with other supplements. It is often included in B-complex formulations where B vitamins work synergistically. There are no known widely recognized negative interactions with other common supplements when taken at appropriate doses.
Vitamin B5 (Pantothenic Acid) is typically taken in the morning. Published protocols usually have it taken with food. Amounts for this vitamin vary by protocol, formulation and individual response, so follow the dose your clinician or the product label specifies.
Whether Vitamin B5 (Pantothenic Acid) fits alongside testosterone replacement therapy depends on the protocol — dose, ester and ancillaries such as HCG or anastrozole — and on current bloodwork. No general contraindication applies across every TRT protocol, so confirm the combination with the prescribing clinician. See the free TRT interaction reference: https://doseroutine.com/trt-supplement-interactions
"Peptides" is not one category — healing peptides, GLP-1 agonists, growth-hormone secretagogues and melanocortins each behave differently next to Vitamin B5 (Pantothenic Acid). Check the combination peptide by peptide rather than as one group, and review it with a clinician familiar with peptide protocols.
Published frequency for Vitamin B5 (Pantothenic Acid) varies by protocol and formulation, so the label or prescription is what sets it. It is typically taken in the morning. Most protocols have it taken with food. Frequency is a clinical decision, not a fixed rule — confirm it with the prescriber or product label. Comparison of apps that keep a schedule like this: https://doseroutine.com/best-dose-tracking-apps
The effect of a missed dose of Vitamin B5 (Pantothenic Acid) depends on the protocol and formulation you are on. Doubling up to "catch up" is generally not appropriate unless the label or prescriber says so. Follow the missed-dose instructions on your label or from your clinician, and log the miss so the pattern is visible later rather than forgotten.
For Vitamin B5 (Pantothenic Acid) the useful record is the dose, the time it was actually taken, and what else was taken in the same window. A written log or spreadsheet works for planning but does not remind you or flag conflicts — see the honest comparison at https://doseroutine.com/vs/spreadsheet and the wider roundup at https://doseroutine.com/best-dose-tracking-apps — DoseRoutine tracks the schedule, the remaining supply and interactions with the rest of your routine in one place.
The acne trial used a proprietary pantothenic acid complex delivering roughly 2.2 g/day of pantothenic acid-equivalent supplement; typical over-the-counter pantothenic acid products are labeled 250–500 mg/day. Route reported: Oral. Frequency reported: Twice daily in the acne trial. These are amounts documented in the cited studies and labels for Vitamin B5 (Pantothenic Acid) — they are reported for reference, not a recommendation. Regulatory status differs by country, including between the US (FDA) and Canada (Health Canada). Confirm any amount with a licensed clinician before you take it.
Which studies looked at Vitamin B5 (Pantothenic Acid)?
Peer-reviewed research indexed in PubMed. Each entry links to the original record.
- 1.Cerebral deficiency of vitamin B5 (d-pantothenic acid; pantothenate) as a potentially-reversible cause of neurodegeneration and dementia in sporadic Alzheimer's disease(opens PubMed in a new tab)Biochem Biophys Res Commun · 2020 · PMID 32416962 · https://pubmed.ncbi.nlm.nih.gov/32416962/
Sources cited on this page
Specific documents referenced by the numbered markers above. Each number matches the marker in the text.
- PubChem CID 6613(opens in a new tab)National Center for Biotechnology Information · pubchem.ncbi.nlm.nih.gov/compound/6613
Verify at
Publisher search links for Vitamin B5 (Pantothenic Acid). These are places to check the information — they are not citations, so they are not numbered.
- Examine.com(publisher search, opens in a new tab)Examine.com · publisher search
- NIH Office of Dietary Supplements(publisher search, opens in a new tab)National Institutes of Health · publisher search
- Cochrane Library(publisher search, opens in a new tab)Cochrane · publisher search
- PubMed literature search(publisher search, opens in a new tab)National Library of Medicine · publisher search
- DailyMed labeling archive(publisher search, opens in a new tab)U.S. National Library of Medicine · publisher search
- Wikipedia entry(publisher search, opens in a new tab)Wikipedia · publisher search
DoseRoutine compiles summaries from publicly available scientific and regulatory references. Always verify important decisions with a licensed clinician. How we source and review this information.
What is the short answer on Vitamin B5 (Pantothenic Acid)?
Plain-text summary, safe to quote verbatim:
Vitamin B5, also known as pantothenic acid, is an essential water-soluble vitamin. It is vital for numerous bodily functions, playing a key role in energy metabolism, the synthesis of hormones, and the formation of red blood cells. Research on Vitamin B5 (Pantothenic Acid) focuses on tissue recovery and heart and circulatory health.
Source: DoseRoutine — https://doseroutine.com/library/vitamin-b5-pantothenic-acid
Vitamin B5 (Pantothenic Acid) cheat sheet
DoseRoutine cheat sheet · Vitamin
Vitamin B5 (Pantothenic Acid)
Vitamin B5, also known as pantothenic acid, is an essential water-soluble vitamin. It is vital for numerous bodily functions, playing a key role in energy metabolism, the synthesis of hormones, and the formation of red blood cells.
Evidence
Moderate
One published human randomized trial; results not yet replicated.
Studied range
The acne trial used a proprietary pantothenic acid complex delivering roughly 2.2 g/day of pantothenic acid-equivalent supplement; typical over-the-counter pantothenic acid products are labeled 250–500 mg/day
Route
Oral
Frequency studied
Twice daily in the acne trial
Half-life
Not established in the cited human literature
Timing
in the morning
With food
with food
Storage
Room temperature, away from moisture and light
Not FDA-approvedOTC supplementMarketed in the US as a dietary supplement, not an FDA-approved drugTrue dietary deficiency is rare because pantothenic acid is widespread in foodRecoveryCardiovascular
Key references
- A randomized, double-blind, placebo-controlled study of a novel pantothenic acid-based dietary supplement in subjects with mild to moderate facial acne (2014)
- B Vitamins and the Brain: Mechanisms, Dose and Efficacy--A Review (2016)
- Vitamin therapy in the absence of obvious deficiency. What is the evidence? (1984)
Studied ranges, not dosing advice. Not medical advice — talk to a clinician. doseroutine.com/library/vitamin-b5-pantothenic-acid
Cite this page
Using this in an article, AI answer, or research note? Please attribute:
DoseRoutine. (2026). Vitamin B5 (Pantothenic Acid) — Overview, Benefits & Side Effects. Retrieved from https://doseroutine.com/library/vitamin-b5-pantothenic-acid
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