| Therapeutic Dosages
| Therapeutic Uses
| What Is the Scientific Evidence for Pantothenic Acid and Pantethine?
| Safety Issues
The body uses pantothenic acid (better known as vitamin B
) to make proteins as well as other important chemicals needed to metabolize fats and carbohydrates. Pantothenic acid is also used in the manufacture of hormones, red blood cells, and
an important neurotransmitter (signal carrier between nerve cells).
As a supplement, pantothenic acid has been proposed as a treatment for
enhancing sports performance
, and fighting
In the body, pantothenic acid is converted to a related chemical known as pantethine. For reasons that are not clear, pantethine supplements (but not pantothenic acid supplements) appear to reduce blood levels of
and possibly also improve the
comes from the Greek word meaning "everywhere," and pantothenic acid is indeed found in a wide range of foods. For this reason, pantothenic acid deficiency is rare. The official US and Canadian recommendations for daily intake of pantothenic acid are as follows:
- 0-6 months: 1.7 mg
- 7-12 months: 1.8 mg
- 1-3 years: 2 mg
- 4-8 years: 3 mg
- 9-13 years: 4 mg
Males and Females
: 6 mg
: 7 mg
Brewer's yeast, torula (nutritional) yeast, and calf liver are excellent sources of pantothenic acid. Peanuts, mushrooms, soybeans, split peas, pecans, oatmeal, buckwheat, sunflower seeds, lentils, rye flour, cashews, and other whole grains and nuts are good sources as well, as are red chili peppers and avocados. Pantethine is not found in foods in appreciable amounts.
, the typical recommended dosage of pantethine is 300 mg 3 times daily. Dosages of pantothenic acid as high as 660 mg 3 times daily are sometimes recommended for people with
Inconsistent evidence from small
trials suggest that pantethine might lower blood levels of
and, to a lesser extent,
High triglycerides, like high cholesterol, increase risk of heart disease and strokes. Some people have only modestly elevated cholesterol but very high triglycerides, so pantethine may be especially useful for them.
Weak evidence hints that pantothenic acid might be helpful for
Pantothenic acid is also recommended as an athletic
, but there is no evidence at all that it works. It is also sometimes referred to as an
nutrient because it plays a role in the function of the adrenal glands, but whether it really helps the body withstand stress is not known.
What Is the Scientific Evidence for Pantothenic Acid and Pantethine?
High Triglycerides/High Cholesterol
Three small double-blind,
studies suggest that pantethine can reduce total blood
and perhaps improve
levels as well.
For example, a double-blind placebo-controlled study followed 29 people with high cholesterol and triglycerides for 8 weeks.
The dosage used was 300 mg 3 times daily, for a total daily dose of 900 mg. In this study, subjects taking pantethine experienced a 30% reduction in blood triglycerides, a 13.5% reduction in LDL ("bad") cholesterol, and a 10% rise in HDL ("good") cholesterol. However, other small studies have found no benefit.
These contradictory results do not necessarily mean that pantethine is ineffective, as chance plays a considerable role in the outcome of small studies. Rather, they suggest that larger studies need to be performed to establish (or disprove) panthethine’s potential efficacy.
studies have specifically studied the use of pantethine to improve cholesterol and triglyceride levels in people with diabetes and found it effective
without causing harmful effects
These findings are supported by experiments in rabbits, which show that pantethine may prevent the build-up of plaque in major arteries.
However, we don't know how pantethine acts in the body to reduce triglycerides.
There is weak evidence for using pantothenic acid to treat
study found 66 people with rheumatoid arthritis had less pantothenic acid in their blood than 29 healthy people. The more severe the arthritis, the lower the blood levels of pantothenic acid were.
However, this result doesn't prove that pantothenic acid supplements can effectively reduce any of the symptoms of rheumatoid arthritis.
To follow up on this finding, researchers then conducted a small placebo-controlled trial involving 18 subjects to see whether pantothenic acid would help. This study found that 2 g daily of pantothenic acid (in the form of calcium pantothenate) reduced morning stiffness, pain, and disability significantly better than placebo.
However, a study this small doesn't mean much on its own. More research is needed.
No significant side effects have been reported for pantothenic acid or pantethine, used by themselves or with other medications. As noted above, pantethine has been used in people with diabetes, without apparent adverse effects. However, maximum safe dosages for young children, pregnant or nursing women, or people with serious liver or kidney disease have not been established.