Black Pepper Powder

About

What it is and where it shows up.

Black pepper powder is the finely ground dried fruit of Piper nigrum (family Piperaceae), one of the most widely used culinary spices in the world. Its primary bioactive alkaloid, piperine (typically 5–9% by dry weight), is responsible for its characteristic pungent taste as well as antioxidant and potential anti-inflammatory pharmacological properties.

Safety summary

The regulatory and scientific consensus.

Black pepper powder is broadly recognized as safe at normal culinary intake levels; JECFA (FAO/WHO) established a NOAEL of 20 mg/kg bw/day for piperine and dietary exposure from food produces a Margin of Exposure well above the acceptable threshold of 100, indicating no adverse health effects. Piperine inhibits cytochrome P450 enzymes (especially CYP3A4) and P-glycoprotein, which can significantly increase the bioavailability of co-administered drugs and poses a risk for individuals on multiple medications. Animal studies with high supplemental bolus doses of piperine have shown indications of reproductive and embryotoxic effects, and mild gastrointestinal adverse effects (abdominal discomfort, diarrhea) have been reported in human studies at pharmacological doses.

Regulatory landscape

What food-safety regulators have decided.

Jurisdiction	Status	Note
EFSA (European Food Safety Authority) (European Union)	Approved	Black pepper and piperine are approved as flavouring substances in the EU. EFSA established a NOAEL of 5 mg/kg bw/day for piperine based on observed serum cholesterol changes in a 90-day study, though this change was not considered toxicologically significant and doses up to 50 mg/kg/day were reported safe. No formal numerical ADI has been set for the ground spice used as a food ingredient.source
FSSAI (Food Safety and Standards Authority of India) (India)	Approved	Regulated under FSS (Food Products Standards and Food Additives) Regulations, Chapter 2.9: Salt, Spices, Condiments and Related Products for Piper nigrum L. Standards mandate minimum piperine content (% m/m on dry basis), maximum moisture content, maximum total ash, minimum volatile oil, and maximum acid-insoluble ash. The product must be free from mould, living and dead insects, insect fragments, rodent contamination, added colouring matter, and all other harmful substances. Labelling must comply with FSS (Labelling and Display) Regulations 2020.source
MHLW (Ministry of Health, Labour and Welfare) (Japan)	Approved	Black pepper is approved as a natural flavouring/spice ingredient in Japan under existing food regulations. No specific ADI established for the ground spice.source
FDA (Food and Drug Administration) (United States)	Approved

Who should approach with care

Whose guidance would steer them away.

Pregnancy — Animal studies with high supplemental bolus doses of piperine have shown indications of embryotoxic effects and maternal reproductive toxicity; normal culinary use is generally considered safe, but high-dose supplementation should be avoided during pregnancy.

Infants — Piperine's pungent irritant properties and potential GI effects make it unsuitable in more than trace amounts for infants, whose GI mucosa is sensitive; no established safe intake level exists for this population.

Ibs — Piperine at higher intake levels has been associated with mild gastrointestinal adverse effects including abdominal discomfort and diarrhea, which may exacerbate symptoms in individuals with irritable bowel syndrome.

Ibd — The pungent irritant properties of piperine may aggravate gastrointestinal mucosal inflammation in individuals with inflammatory bowel disease such as Crohn's disease or ulcerative colitis.

Other — Piperine significantly inhibits CYP3A4 enzymes and P-glycoprotein, increasing the bioavailability and potential toxicity of many common drugs (e.g., anticoagulants, immunosuppressants, anticonvulsants, antiretrovirals); individuals on these medications should consult a doctor before consuming large or supplemental amounts of black pepper or piperine.

Research citations

The sources behind this verdict.

1FDA. Substances Added to Food (formerly EAFUS) — Pepper, Black (Piper nigrum L.). hfpappexternal.fda.gov
2other. Enhancing the Regulatory Decision-Making Approval Process for Direct Food Ingredient Technologies — Legal Aspects of the Food Additive Approval Process (NCBI Bookshelf). ncbi.nlm.nih.gov
3PubMed. The Hidden Power of Black Pepper: Exploring Piperine's Role in Cancer, 2025. pmc.ncbi.nlm.nih.gov
4FSSAI. Chapter 2 Food Product Standards 2.9: Salt, Spices, Condiments and Related Products — Black Pepper (Piper nigrum L.) — Version 3, 2025. fssai.gov.in
5PubMed. Safety Aspects of the Use of Isolated Piperine Ingested as a Bolus, 2021. pubmed.ncbi.nlm.nih.gov
6PubMed. Determination and risk characterisation of bio-active piperine in black pepper and selected food containing black pepper consumed in Korea, 2021.

Independently researched6 citations