Supplement guide

Black/White Pepper - Piper Nigrum

Learn about the uses, forms, amounts, and precautions for Black/White Pepper - Piper Nigrum. This guide brings the relevant conditions together so you can see who the information covers, how preparations differ, and what to consider before use.

Prepared by Dr. Edward M.Kim, PharmD · Clinical Director, SupplementSafety editorial team · Sources and editorial method

First released · Updated · View changes

What is it used for?

Powdered Piper nigrum fruit (unextracted)

For multi-ingredient products:

  • To prevent the product from being represented as a “traditional medicine”, any indicated traditional use claim must refer to the specific active ingredient(s) and recognized traditional system of medicine from which the claim originates when 1) both traditional and modern claims are present or 2) when claims originate from multiple systems of traditional medicine (e.g., Black pepper is traditionally used in Ayurveda to improve digestion).

  • When ALL of the active ingredients (MIs) in the product are used within the SAME identified system of traditional medicine AND the product makes ONLY traditional claims, listing of MIs in the traditional claim(s) is not required.

Piperine isolated from the fruit

No claim (safety only)

Who does this guide cover?

Adults 18 years and older

How is it taken?

Oral

Which forms are covered?

this reference excludes foods or food-like dosage forms as indicated in the Compendium of references Guidance Document.

Acceptable dosage forms for oral use are indicated in the dosage form drop-down list of the web-based Product Application form for reference-based applications.

Quantities

Ayurvedic claims

Method of preparation: Powdered*

250-420 milligrams of dried fruit, per day [Source note 4].

*Note: The method of preparation ‘powder’ is defined as a dried and ground preparation (= unextracted).

Piperine isolated from the fruit - No claim (safety only)

Not to exceed 14 milligrams of piperine, per day [Source note 5].

How is it used?

The reference does not require an additional label statement in this section. This does not establish an absence of risk.

How long is it used?

Products containing Piper nigrum fruit to improve digestion; Products containing piperine isolated from the fruit (Class II/III)

Ask a healthcare professional for use beyond 12 weeks [Source note 6].

Note: At subtherapeutic quantities, this duration of use statement is not required for products providing 25 mg or less Piper nigrum fruit per day for source review category II and III.

Vermifuge/anthelmintic

For occasional use only.

Warnings and precautions

All products

  • Ask a healthcare professional before use if you are pregnant or breastfeeding.

  • Ask a healthcare professional before use if you are taking medications or any other health products, as black/white pepper/piperine may alter their effectiveness [Source note 7]

¹Note: At subtherapeutic quantities, the risk statement regarding the alteration of effectiveness is not required for products providing 25 mg or less Piper nigrum fruit per day for source review category II and III.

Improve digestion

Ask a healthcare professional if symptoms persist or worsen.

Vermifuge/anthelmintic

Ask a healthcare professional if symptoms worsen or persist for more than 2 weeks.

When should it be avoided?

The reference does not require an additional label statement in this section. This does not establish an absence of risk.

Possible side effects

The reference does not require an additional label statement in this section. This does not establish an absence of risk.

Storage

Must be established in accordance with the requirements described in the applicable product regulations.

Conditions for combined preparations

  • Combination of Piper nigrum fruit and piperine within this reference (Class I) is not permitted as this reference only includes Ayurvedic medicine claims and the isolation of the constituent piperine is not a traditional method of preparation used in Ayurvedic medicine.

  • Combination of Piper nigrum fruit and piperine outside this reference for safety only is allowed if the total amount of piperine does not exceed 14 mg per day.

Preparation details

Ingredient identity, preparation requirements, and other details that define the scope of this guide.

Ingredients and preparations
Table 1. Proper name(s), Common name(s), Source information
Proper name(s)Common name(s)Source information / Source material(s)Source information / Part(s)Source information / Preparation(s)
Piper nigrum
  • Black pepper
  • White pepper
  • Pepper-black
  • Pepper-white
Piper nigrumFruitDry
1-[(2E,4E)-5-(1,3-Benzodioxol-5-yl)-1-oxo-2,4-pentadienyl]piperidinePiperinePiper nigrumFruitN/A

References: Proper names: RSC 2024; USDA 2024; Duke 2009; Common names: RSC 2024; USDA 2024; Source information: CNF 2023.

Other ingredients

Must be chosen from the current source ingredient database and must meet the limitations outlined in the database.

Preparation and quality requirements
  • The finished product specifications must be established in accordance with the requirements described in the source authority source’s product quality guidance.

  • The active ingredient must comply with the requirements outlined in the source ingredient database.

Guide change history

Updates to this SupplementSafety.org guide.

  1. Minor updates

    Updated guide wording, organization, and source presentation. Added our editorial change history.

  2. Initial release

    Initial SupplementSafety.org guide prepared from source reference material.

Validation: Not yet completed. Editorial updates do not constitute clinical validation.

Sources

Source information

This guide organizes source material about uses, preparations, amounts, and precautions. Read the conditions alongside each statement; the information may apply only to particular preparations or populations.

The source document includes supporting references. We have not independently summarized or assessed every cited study for this guide.

Source document version
December 19, 2025
Source captured
Aug 15, 2026
Editorial work
Editorial preparation. Independent clinical review has not been recorded for this guide.

Full citations are available through the link above. Verification is required to open them; reading this guide does not require verification.

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