vitamin · for stress
Vitamin B5
Your body needs B5 to make cortisol, which is the reasoning behind a stress claim.
Say that in clinical terms
Essential precursor to coenzyme A, required for synthesis of cortisol and other steroid hormones in adrenal cortex.
How strong is the research?
2 papers read, 1 supporting.
Who was studied: Adults reporting stress at work or ongoing stress.
No qualifying human trials were found for pantothenic acid supplementation and stress outcomes. Every PubMed search returned the same cluster of unrelated results: a hydration beverage safety trial (PMID 38892699) containing pantothenic acid among many other ingredients, a topical panthenol skin study (PMID 27425824), and a hepatitis C antioxidant study (PMID 20518086). The only human evidence with any relevance is a cross-sectional dietary survey (PMID 33848753, DOI 10.1016/j.jad.2021.03.055) which found an observational association between moderate dietary pantothenic acid intake and lower anxiety odds — this is not a supplementation trial and does not test pantothenic acid as a primary in
How much to take
daily
250–500 mg
Often combined with other B vitamins. Take with meals to reduce GI upset.
Before you take it
- NIH ODS has not established a Tolerable Upper Intake Level (UL) for pantothenic acid; the Food and Nutrition Board found no reports of adverse effects in humans at high intakes sufficient to set a UL.
- No clinically relevant interactions with medications are known (NIH ODS).
- GI distress (primarily diarrhea) has been reported at very high intake levels, typically around 10 g/day; well tolerated in short-term trials at lower supplemental doses.
- Very high doses of pantothenic acid may theoretically compete with biotin for intestinal absorption; clinical significance at moderate supplemental doses is not established.
When to take it
Best taken: morning
What we make of it
The biochemistry is real; taking more than you need is not shown to do anything.
The detail
Pantothenic acid genuinely is required to make coenzyme A, which sits upstream of steroid hormone production. Supplementing beyond what nutrition requires has not been shown to change stress.