B5 Dosage Guide

Our assessment

Based on the data provided, pantothenic acid has a strong safety profile and is generally well-tolerated. The primary risk is associated with extremely high supplemental doses, not with typical dietary intake. This is a very favorable safety finding compared to many other supplements FDA FAERS ↗.

How it works

Pantothenic acid, also known as vitamin B5, is essential for the body's production of coenzyme A, a molecule critical for converting food into energy and synthesizing important fats and hormones. The data confirms that it is safe even at high doses FDA FAERS ↗.

Safety profile

The FDA data indicates that taking very high doses of pantothenic acid supplements, such as 10,000 mg per day, can cause an upset stomach and diarrhea FDA FAERS ↗. No specific report counts for these side effects are provided in the data. No other adverse events are listed in the data provided FDA FAERS ↗.

Our recommendation

Most people do not need to be cautious with pantothenic acid, as it is not known to interact with any medicines FDA FAERS ↗. However, avoid extremely high supplemental doses (e.g., 10,000 mg per day) to prevent upset stomach and diarrhea. Always tell your healthcare providers about all supplements and medicines you take FDA FAERS ↗.

Dietary Reference Intakes (DRIs) are a set of reference values used to plan and assess nutrient intakes of healthy people. They include:

• RDA (Recommended Dietary Allowance) — The average daily intake sufficient to meet the nutrient requirements of nearly all (97-98%) healthy individuals.
• AI (Adequate Intake) — Established when evidence is insufficient to develop an RDA. Based on observed nutrient intake by healthy people.
• UL (Tolerable Upper Intake Level) — The maximum daily intake unlikely to cause adverse health effects. Exceeding the UL increases the risk of toxicity.

Values vary by age, gender, and life stage (pregnancy, lactation).

Source: National Academies of Sciences, Engineering, and Medicine