Black Pepper, Cayenne and Capsaicin Foods
Black pepper (piperine) and chili peppers (capsaicin) as seasonings. What cohort studies found, how isolated piperine differs from pepper on food, digestive effects and spice allergy.
Content last updated . This page has not been medically reviewed.
Safety first. Supplements can cause side effects and interact with medicines. Read mushroom safety and interactions before you use any mushroom product.
The short answer. Black pepper and chili peppers are everyday seasonings. Studies of people who eat spicy food are observational, and they do not show that chili causes a health benefit or harm. Concentrated piperine in supplements is a different matter, because it can change how some medicines are absorbed. [1]
What these foods are
Black pepper is the spice from Piper nigrum L. (Piperaceae); piperine is a pungent alkaloid found in it. [2] [3] Chili peppers come from Capsicum annuum L. (Solanaceae) and related species; their heat comes from capsaicin. [4] [5] Herb-level pages: Black pepper and Cayenne pepper.Black pepper and piperine: seasoning versus supplement
German Federal Institute for Risk Assessment (BfR) scientists reviewed piperine safety. They pointed out that pepper used for seasoning differs from piperine used in food supplements in an isolated, concentrated form and swallowed as a bolus. [1] In human and animal studies of isolated piperine, interactions with several drugs were seen, in most cases raising drug availability in the body, which could increase drug effects. [1] A separate review describes piperine as inhibiting liver enzymes (CYP3A4) and a transporter (P-glycoprotein), and flags the potential for significant drug interactions. [3] Animal studies with high piperine doses showed signs of effects on sperm production and on pregnancy. [1]These findings concern isolated piperine. Proper evidence not found in the sources we read for medicine interactions or health outcomes from ordinary pepper on food; we searched PubMed reviews on piperine and the NCCIH turmeric page. Piperine is also added to some curcumin products to improve absorption. [6] See Turmeric as a food. If you take any prescription medicine and use a piperine or black pepper extract supplement, ask a pharmacist; see How interactions work.
Chili and capsaicin foods: what research shows
| Question | What the source found | Strength of evidence | Design |
|---|---|---|---|
| Death from any cause or heart disease | A meta-analysis of 4 cohort studies (about 564,000 adults, median 9.7 years) found regular spicy-food eaters had 12% lower all-cause mortality and lower heart-disease death, but not lower stroke death. [7] | Promising but limited | Observational |
| Digestive-tract cancers | A meta-analysis of 14 case-control studies found high chili intake associated with higher risk of GI cancers overall (OR 1.64, interval 1.00 to 2.70) and esophageal cancer (OR 2.71); results differed by region, with lower risk in South American and European studies. [8] | Mixed | Observational, case-control |
| Overall picture | An umbrella review of 11 reviews said the health effect of spicy food and chili is unclear, with links to some cancers and to lower mortality and heart disease. [5] | Mixed | Review of observational studies |
| Digestive symptoms | A review reported that a single chili exposure can worsen abdominal pain and burning in people with dyspepsia and irritable bowel syndrome, while long-term chili intake improved dyspepsia and reflux symptoms in small randomized studies. [9] | Mixed | Small trials, older review |
Cohort studies compare people who eat spicy food regularly with those who do not, and those groups differ in other ways. Capsaicin as a pill or a skin product is not covered here; see Cayenne pepper.
Related
Ginger as a food, Saffron, cloves and other whole spices and Foods for gut health and bloating.Frequently asked questions
Does spicy food help you live longer?
A meta-analysis of 4 cohort studies found 12% lower all-cause mortality in regular spicy-food eaters, but it was observational and the authors called for more studies. [7]
Does chili cause cancer?
A meta-analysis of case-control studies found higher esophageal cancer risk with high chili intake, with results differing by region. [8] An umbrella review called the overall effect unclear. [5]
Is black pepper the same as piperine supplements?
No. Pepper as a seasoning differs from isolated, concentrated piperine in supplements, which showed drug interactions in studies. [1]
Can chili make heartburn or stomach pain worse?
A review says a single exposure can aggravate burning and abdominal pain in people with dyspepsia or irritable bowel syndrome. [9]
Can you be allergic to pepper or other spices?
Yes. Reviews describe spice allergy, including to pepper, with symptoms from mild mouth reactions to anaphylaxis. [10]
More details: evidence, limits and cautions
The details behind this page: cautions, limits of the evidence and where sources disagree. Open any note to read it.
Safety and individual considerations
- Digestive upset. People with reflux, dyspepsia or irritable bowel syndrome may notice more burning or pain after chili. [9] Ask a clinician about persistent symptoms.
- Allergy. Spice allergy is under-recognized. Reviews list pepper among spices that can cause reactions, with cross-reactivity to pollens (birch and mugwort) and other plants. [10] [11] If someone has trouble breathing or swelling of the face or throat after eating, call 911. See Food allergy basics and emergency signs.
- Pregnancy, children, kidney disease, liver disease, surgery. Not described for pepper and chili as seasonings in the sources we read. Ask a clinician about concentrated products.
- Medicines. See the piperine section above.
References
- Safety Aspects of the Use of Isolated Piperine Ingested as a Bolus. Foods 2021. PMID 34574230. Read 2026-10-23.
- GBIF Secretariat. Piper nigrum L., GBIF Backbone Taxonomy. Read 2026-10-23.
- Metabolic Insights into Drug Absorption: Unveiling Piperine's Transformative Bioenhancing Potential. Pharm Res 2025. PMID 41053306. Read 2026-10-23.
- GBIF Secretariat. Capsicum annuum L., GBIF Backbone Taxonomy. Read 2026-10-23.
- Spicy Food and Chili Peppers and Multiple Health Outcomes: Umbrella Review. Mol Nutr Food Res 2022. PMID 36111960. Read 2026-10-23.
- National Center for Complementary and Integrative Health (NCCIH). Turmeric: Usefulness and Safety. Read 2026-10-23.
- Association of Spicy Chilli Food Consumption With Cardiovascular and All-Cause Mortality: A Meta-Analysis of Prospective Cohort Studies. Angiology 2021. PMID 33657876. Read 2026-10-23.
- Association between chili pepper consumption and risk of gastrointestinal-tract cancers: A meta-analysis. Front Nutr 2022. PMID 36407551. Read 2026-10-23.
- Are rice and spicy diet good for functional gastrointestinal disorders?. J Neurogastroenterol Motil 2010. PMID 20535343. Read 2026-10-23.
- Spices, herbs and allergic reactions in children: myth or reality - a narrative review with scoping elements. Front Allergy 2025. PMID 41306764. Read 2026-10-23.
- Allergic reactions to spices: a review of sensitivities to pepper, cumin, oregano, anise, mustard and other spices. Eur Ann Allergy Clin Immunol 2026. PMID 40341008. Read 2026-10-23.