Vitamin B5 (Pantothenic Acid): What It Does, Food Sources, and Daily Needs
What vitamin B5 (pantothenic acid) does, how much you need each day, the best food sources, deficiency risks, and what to know about supplements and safety.
Key takeaways
- Vitamin B5 is pantothenic acid. It belongs to the water-soluble B-vitamin family and is an essential nutrient.
- It supports energy metabolism. The body needs B5 to produce coenzyme A, which helps process carbohydrates, fats and proteins.
- Adults need 5 mg daily. This is an Adequate Intake (AI), not a Recommended Dietary Allowance (RDA).
- B5 occurs in many foods. Meat, eggs, mushrooms, sunflower seeds, avocado and whole grains can contribute.
- Deficiency is very rare. Taking additional B5 does not automatically improve energy or prevent chronic disease.
In this article
Vitamin B5, also called pantothenic acid, is one of the eight B vitamins. Your body needs it to make coenzyme A, a substance involved in processing nutrients and supporting normal cellular functions.
Unlike some vitamins that are concentrated in particular foods, pantothenic acid occurs in a remarkably wide variety of ingredients. Its name comes from the Greek word pantos, meaning “everywhere,” reflecting how widely it is distributed in food.
So what does vitamin B5 actually do, how much do you need, and can taking more provide additional benefits? Here is what nutritional research tells us about pantothenic acid, food sources, deficiency and supplements.
What Is Vitamin B5?
Vitamin B5, or pantothenic acid, is one of the eight B vitamins included among the 13 essential vitamins. It belongs to the water-soluble vitamin family, meaning it dissolves in water rather than fat.
As an essential nutrient, pantothenic acid must come from the diet. The body uses it to produce coenzyme A (CoA), a molecule involved in many metabolic reactions.[1]
Because pantothenic acid is present in varying amounts in almost all plant and animal foods, most people can obtain enough through a varied diet. This widespread availability also helps explain why an isolated B5 deficiency is exceptionally uncommon.
What Does Pantothenic Acid Do?
Vitamin B5 supports energy metabolism by helping the body produce coenzyme A. This molecule participates in reactions that allow cells to process carbohydrates, fats and proteins from food.[1][2]
Vitamin B5 does not provide energy directly. Calories come from macronutrients, while B5 helps the body use them. Taking extra pantothenic acid does not automatically increase energy levels when intake is already adequate.
Why Is Coenzyme A Important?
Coenzyme A is particularly important in fat metabolism. It participates in breaking down fatty acids for energy and in processes involved in producing new fatty acids.
It also contributes to the synthesis of cholesterol and certain hormones. These are normal biological processes, not evidence that taking additional vitamin B5 increases hormone production or improves cardiovascular health.
For everyday nutrition, the main point is simple: pantothenic acid helps maintain metabolic processes your body already performs continuously.
How Much Vitamin B5 Do You Need?
Vitamin B5 recommendations are expressed as an Adequate Intake (AI) rather than a Recommended Dietary Allowance (RDA). An AI is established when there is not enough evidence to calculate an RDA.
For most adults, the AI is 5 mg per day. The recommended amount increases during pregnancy and breastfeeding.[1]
| Age / Life Stage | Males | Females |
|---|---|---|
| Birth–6 months | 1.7 mg | 1.7 mg |
| 7–12 months | 1.8 mg | 1.8 mg |
| 1–3 years | 2 mg | 2 mg |
| 4–8 years | 3 mg | 3 mg |
| 9–13 years | 4 mg | 4 mg |
| 14–18 years | 5 mg | 5 mg |
| Adults 19+ | 5 mg | 5 mg |
| Pregnancy | — | 6 mg |
| Breastfeeding | — | 7 mg |
These values reflect total daily intake from food and other sources. They are not instructions to take the listed amounts as supplements. For infants, intake recommendations and feeding decisions should be discussed with a pediatric healthcare professional when needed.
What Foods Contain Vitamin B5?
Pantothenic acid occurs in almost every food group, although the amount varies considerably. Organ meats, poultry, fish, mushrooms, seeds, avocado and dairy products can all contribute.
Because several foods provide more than one B vitamin, it can also help to compare the food sources of all eight B vitamins rather than focusing on pantothenic acid alone.
| Food | Approximate Vitamin B5 per Serving |
|---|---|
| Cooked beef liver, 85 g | 8.3 mg |
| Cooked shiitake mushrooms, ½ cup | 2.6 mg |
| Sunflower seeds, ¼ cup | 2.4 mg |
| Cooked chicken breast, 85 g | 1.3 mg |
| Cooked tuna, 85 g | 1.2 mg |
| Avocado, ½ fruit | 1.0 mg |
| Milk, 1 cup | 0.9 mg |
Values are approximate and depend on the food, portion size and preparation. Whole grains, potatoes, broccoli, eggs, chickpeas and peanuts are additional sources.[1]
You do not need to eat all these foods each day. A varied combination of familiar ingredients generally provides pantothenic acid from several sources.
Does Food Processing Reduce Vitamin B5?
Yes. Refining, processing and some cooking methods can reduce the pantothenic acid content of foods. Losses vary depending on the food and how it is handled. Because B5 is water-soluble, some may also move into cooking water.[1]
Our guide to how cooking affects nutrients explains why different preparation methods can change vitamin retention.
This does not mean that cooked foods lack vitamin B5. Eating a varied diet matters more than attempting to prevent every possible nutrient loss.
What Happens if You Don’t Get Enough Vitamin B5?
Isolated vitamin B5 deficiency is extremely rare. Because pantothenic acid is present in many foods, deficiency is mainly documented in unusual circumstances involving very restricted intake or severe malnutrition.[1][2]
Reported symptoms of severe deficiency include fatigue, irritability, disturbed sleep, headaches, digestive discomfort, numbness and burning sensations in the hands or feet.
However, these symptoms are not specific to vitamin B5. People with severe malnutrition often have several nutrient deficiencies at the same time, making it difficult to determine which symptoms are caused by pantothenic acid alone.
Severe deficiency may be associated with fatigue, but vitamin B5 supplements are not a general treatment for tiredness. It is useful to distinguish fatigue from sleepiness, because they describe different experiences and may have different underlying causes.
If persistent fatigue, tingling, numbness or other unexplained symptoms occur, medical assessment is more appropriate than assuming vitamin B5 is the cause.
Do You Need a Vitamin B5 Supplement?
For most people, probably not. Pantothenic acid occurs in so many foods that a varied diet generally provides adequate amounts. Our guide explains when dietary supplements may be useful and why they are not automatically necessary for everyone.
Vitamin B5 is available in individual supplements, B-complex products and multivitamins. Products may contain pantothenic acid in forms such as calcium pantothenate, while some contain a related compound called pantethine.
Our guide to how to take B vitamins explains supplement timing, combinations and why checking overlapping amounts can be helpful.
Does More Vitamin B5 Mean Greater Benefits?
Not necessarily. Vitamin B5 supports normal metabolism, but studies have not established that taking high doses improves energy levels or prevents chronic diseases in people who already obtain enough.
No Tolerable Upper Intake Level (UL) has been established for pantothenic acid because available evidence has not been sufficient to identify a clear toxicity threshold. However, very high supplemental amounts, such as approximately 10,000 mg per day, have been associated with diarrhea and gastrointestinal discomfort.[1]
High-dose supplements should not be considered harmless simply because no official UL has been established.
Frequently asked questions
Can You Get Enough Vitamin B5 on a Vegan Diet?
Yes. Pantothenic acid occurs in many plant foods, including mushrooms, avocado, potatoes, broccoli, sunflower seeds, chickpeas and whole grains. A varied vegan diet can provide adequate vitamin B5 without animal products. Vitamin B12 requires separate attention, because ordinary plant foods are not reliable sources of that vitamin.
What Is the Difference Between Pantothenic Acid and Pantethine?
Pantothenic acid is vitamin B5, an essential nutrient needed for normal metabolism. Pantethine is a related compound used in some supplements. It has been studied for possible effects on cholesterol and triglycerides, but the evidence remains limited. Findings about pantethine should not be treated as proof that ordinary vitamin B5 supplements lower cholesterol or prevent cardiovascular disease.[1]
Can Taking Too Much Vitamin B5 Cause Side Effects?
Yes. Although vitamin B5 has no established Tolerable Upper Intake Level, very high supplemental doses can cause digestive problems, including diarrhea. The absence of an established UL does not mean unlimited doses are safe or beneficial. If you are considering a high-dose product, discuss its purpose and amount with a qualified healthcare professional.[1]
Final thoughts
Vitamin B5 is essential for normal energy metabolism and many cellular processes. Because pantothenic acid occurs in a wide variety of plant and animal foods, most people can meet their daily needs through a varied diet.
Deficiency is very rare, and taking extra B5 does not automatically improve energy or prevent disease. Understanding its role, everyday food sources and the limits of supplement research is more useful than focusing on high doses.
References
- National Institutes of Health, Office of Dietary Supplements. Pantothenic Acid: Fact Sheet for Health Professionals. NIH ODS.
- National Institutes of Health, Office of Dietary Supplements. Pantothenic Acid: Fact Sheet for Consumers. NIH ODS.
- MedlinePlus. Vitamins. U.S. National Library of Medicine.
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