Poppy seed: Flavor, Cooking Use and Health Facts
Poppy seed is nutty, earthy and slightly bitter and used in baking, fillings and curries; the seeds can carry traces of opium alkaloids, which matters for drug tests, poppy seed tea and young children.
Content last updated . This page has not been medically reviewed.
In the kitchen at a glance
Flavor:EarthyBitterSweet
Aroma: Mild, earthy and musty when whole; ground seeds smell smoky and sweet.
Used in: baking, desserts, curries, rice and grains
Usual amount in food: USDA lists 2.8 g per teaspoon and 8.8 g per tablespoon; we found no source that sets a usual recipe amount.
What it is
Poppy seed is the small, kidney-shaped seed of the opium poppy, Papaver somniferum. It is taken from dried seed pods. [1] The seeds are legally grown and sold in Central Europe and South Asia; Turkey and Serbia are producers and the Czech Republic is the leading exporter, according to Wikipedia. [1] The seeds do not make opium alkaloids themselves. They can pick them up from the plant's sap through pest damage or at harvest. [4][5]Flavor and aroma
Poppy seeds taste nutty, a little fruity and floral, and earthy. They are naturally somewhat bitter, so bakers add acid and salt to balance them. [2] Ground seeds smell smoky and sweet. Stale seeds smell like modeling clay; fresh ones smell musty and earthy. [2] Color matters: blue or black seeds are the most pungent, grey are milder, and white are the nuttiest. [3] Wikipedia names 2-pentylfuran as the main flavor compound. [1] Toasting deepens the flavor and adds crunch. [2]How it is used in cooking
Whole seeds go on bagels, rolls, breads, muffins and cakes. Ground seeds, or a ready-made paste, are used for fillings. [1][3]- Central and Eastern Europe: poppy seed rolls and cakes such as German mohnkuchen, Hungarian pastries, Christmas desserts, and pierogi or knishes. [1][2]
- Jewish baking: sweet poppy seed pastries are traditional at Purim. [1]
- South Asia: white seeds are ground to thicken curries such as korma, in the Bengali potato dish aloo posto, or used whole for texture in rice. [1][2]
- Savory ideas: a warm vinaigrette, a coating for fish, or a lemon sauce for pasta. [3]
- Oil: pressed seeds give poppy seed oil for cold dishes; one source says not to heat it above 150 C. [1][3]
To toast, spread whole seeds in a moderate oven (about 300 F) before adding them to dough, as you would sesame seeds. [2] To grind, use a small blender or a spice grinder in small batches until the texture is like moist soil. [2] One source says to buy whole seeds and grind them shortly before use. [3] The sources we read give no tested substitutes, so we give none. Wikipedia notes that amaranth seeds look similar and are sometimes mixed in. [1]
Normal food amounts
| Measure | Grams | Source |
|---|---|---|
| 1 teaspoon | 2.8 g | USDA [12] |
| 1 tablespoon | 8.8 g | USDA [12] |
| Typical recipe amount | Not found | We opened no source that states one |
What one teaspoon (2.8 g) provides, calculated from USDA values per 100 g:
| Nutrient | One teaspoon |
|---|---|
| Energy | about 15 kcal |
| Fat | about 1.2 g |
| Fiber | about 0.5 g |
| Calcium | about 40 mg |
| Magnesium | about 10 mg |
| Manganese | about 0.2 mg |
Poppy seed is richer in minerals than most spices, but a teaspoon is a small amount. The USDA SR Legacy data are from 2018 and real products vary. [12] We did not compare these numbers with official daily values, so we do not call poppy seed a "good source" of anything. Larger amounts, such as a filling, give more.
Buying, storing and preparing
- Forms: whole seeds in blue, grey and white; ready-made ground paste; and oil. [1][3]
- Rancidity: the seeds are high in fat and go off quickly once ground. Buy from a shop with fast turnover and, if you can, keep them cool. [2][3]
- Storing: keep whole seeds sealed, cool and dark; freeze ground seeds. [3] One source says whole seeds stay fresh for a couple of months. [3] Another says to use them soon after buying or freeze them. [2]
- Mix-ups: Wikipedia says amaranth seeds are sometimes mixed in because poppy seed costs more. [1]
- Seeds sold "for tea": unwashed seeds sold online are the product linked to harm. For cooking, buy seeds sold as a baking ingredient. [8]
Health: what research says
Eating poppy seeds in a bun or a cake is very different from brewing them into tea or taking them in large amounts.Food amounts vs supplements
| In normal cooking | In supplements and extracts | |
|---|---|---|
| Typical amount | About 2.8 g per teaspoon (USDA); no usual recipe amount found [12] | No official amount found; poppy seed supplements are not described in the sources we read |
| What studies mostly used | Drug-test studies: volunteers ate a poppy seed roll or raw seeds [9][10] | Studies of "tea" brewed from large amounts of seeds, mostly case and lab reports [7][8] |
| What we can say about benefit | We found no trial showing a health benefit from eating poppy seeds | None found |
| Main safety limit | Alkaloid traces for young children and big eaters; positive drug tests; rare allergy [4][5][10][11] | Tea from unwashed seeds can extract potentially lethal amounts of morphine [7] |
What the evidence shows
| Use | What the sources found | Strength of evidence | Form and population |
|---|---|---|---|
| Minerals and fiber | USDA lists high calcium, magnesium, manganese and fiber per 100 g; a teaspoon is small. [12] | Established (a composition fact) | Lab analysis of the seed |
| Any disease or health goal | We found no trial of eating poppy seeds for a health outcome. | No good evidence of benefit | Food amounts |
| Effect of heat on alkaloids | Heat treatment lowered all alkaloids compared with untreated seeds; normal use did not exceed EFSA's dose in that study. [6] | Promising but limited | Lab study of seeds and baked foods |
| Positive opiate urine test | In 12 volunteers, urine morphine reached 155 to 1,408 ng/mL after a poppy seed roll and 294 to 4,213 ng/mL after raw seeds. [9] | Established (a measured effect, not a benefit) | Healthy adults eating seed foods |
| Codeine-only test result | In a controlled study, 6 of 33 urine samples (18%) after certain seed products looked like codeine use at a 300 ng/mL cutoff. [10] | Established (a measured effect, not a benefit) | 11 adults, 10 seed products |
| Poppy seed tea | Home-brewed tea from online-bought seeds could yield potentially lethal amounts of morphine; seed levels ranged from under 1 to 2,788 mg/kg. [7] | Established (a hazard) | Lab study and two autopsy cases |
The site also has a longer page on the seed as a food: Poppy seeds (nuts and seeds).
Official statements
- EFSA, 2011: acute reference dose of 10 micrograms of morphine per kg of body weight; large-amount eaters are likely to exceed it on some days. [4]
- EFSA, 2018: kept the value, added codeine, and said thebaine could pose a health risk but data were limited. [5]
- FDA, WHO, EMA, NCCIH: we did not open statements from these bodies on poppy seed.
Related pages
Health connections for Poppy seed
What research links to this spice, and how strong the evidence is. Most studies use concentrated extracts or doses far above what you eat; each card says which.
Effect of heat on alkaloids
Preliminary or mixedHeat treatment lowered all alkaloids compared with untreated seeds; normal use did not exceed EFSA's reference dose in that study. EFSA said in 2011 that washing, soaking, grinding and cooking may cut alkaloids by up to about 90%.
Supplements: Food preparation finding (lab study of seeds and baked foods); not a health benefit.
Minerals and fiber in the seed
Not enough evidenceUSDA lists high calcium, magnesium, manganese and fiber per 100 g, but a teaspoon (2.8 g) is a small amount.
Supplements: No trial of eating poppy seeds for a health outcome was found; no supplement form described.
Connected topics
Open a group to see how each topic connects and how strong the evidence is.
Body systems (1)
- Immune SystemDocumented risk
Poppy seed allergy is rare but can cause anaphylaxis, and seed proteins cross-react with hazelnut, buckwheat and almond.
Root causes (1)
- Environmental ToxinsDocumented risk
Seeds can carry traces of opium alkaloids picked up from the plant; EFSA says large eaters are likely to pass its reference dose on some days. This is a natural plant contaminant, not an industrial toxin.
Conditions & symptoms (2)
- Food AllergyDocumented risk
Poppy seed allergy is rare; 10 of 36 sensitized people reacted to a food challenge, with cross-reactivity to some tree nuts.
- Food AnaphylaxisDocumented risk
Poppy seed allergy can cause anaphylaxis.
Documented risks and interactions (5)
- Opiate urine drug test positives. In 12 volunteers, urine morphine reached 155 to 1,408 ng/mL after a poppy seed roll and 294 to 4,213 ng/mL after raw seeds. In a second study, 6 of 33 urine samples after certain seed products looked like codeine-only use at a 300 ng/mL cutoff.
- Poppy seed tea hazard. Home-brewed tea from online-bought seeds could yield potentially lethal amounts of morphine; seed levels ranged from under 1 to 2,788 mg/kg. A review describes effects and withdrawal if use stops.
- Opium alkaloid exposure from food. EFSA set an acute reference dose of 10 micrograms of morphine per kg of body weight in 2011 and said big eaters of seeds are likely to pass it on some days. In 2018 it added codeine and found exposure above the value in most age groups for medicine-variety seeds.
- Young children and bakery use. EFSA said in 2011 that young children could, rarely, pass its reference dose with poppy seeds used on bread and fine bakery products.
- Poppy seed allergy. Allergy is rare but can cause anaphylaxis. In a 2024 study of 36 sensitized people, 10 reacted to a food challenge; seed proteins cross-reacted with hazelnut, buckwheat and almond proteins.
Frequently asked questions
Is poppy seed sweet?
It is mostly nutty and earthy, with a slight bitterness. White seeds are the nuttiest, and ground seeds smell smoky and sweet. [2][3]
How much is normal?
USDA lists 2.8 g per teaspoon and 8.8 g per tablespoon. [12] We found no source for a usual recipe amount.
Can eating poppy seeds make me fail a drug test?
Yes, it can. After a roll or raw seeds, volunteers' urine contained morphine and codeine at levels a test can pick up. [9] Tests cannot always tell seed foods from codeine use. [10]
Is it safe in pregnancy?
The sources we read give no advice on poppy seed in pregnancy. Ask your midwife or doctor.
Is poppy seed tea safe?
No source we read treats it as safe. Tea from unwashed seeds can contain potentially lethal amounts of morphine. [7][8]
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 note at a glance
Safety in more detail
- Medicines: the sources we read do not describe interactions between poppy seed foods and prescription drugs. Poppy seed tea has opioid-like effects, so ask a pharmacist before combining it with any sedating medicine. [8]
- Pregnancy: the sources we read give no pregnancy advice for poppy seeds. See foods in pregnancy and ask a clinician.
- Breastfeeding: the sources we read do not describe it.
- Children: EFSA said in 2011 that young children could, rarely, pass its reference dose with poppy seeds used on bread and fine bakery products. [4]
- Allergy: poppy seed allergy is rare but can cause anaphylaxis. [1] In a 2024 study of 36 people sensitized to poppy seed, 10 reacted to a food challenge; poppy seed proteins cross-reacted with hazelnut, buckwheat and almond proteins. [11] For trouble breathing or swelling of the face or throat, call emergency services.
- Liver and kidney: the sources we read do not describe it.
- Surgery: the sources we read do not describe it. Tell the team about any large intake.
- Quality and contamination: morphine in seeds varies enormously from batch to batch. [7] Washing, soaking, grinding and cooking may cut alkaloids by up to about 90%, EFSA said in 2011. [4]
- Amounts that cause trouble: EFSA's acute reference dose is 10 micrograms of morphine per kg of body weight; in 2018 it counted codeine as 0.2 morphine equivalents and found that seeds from varieties grown for medicine gave exposure above this in most age groups. [4][5] A 2019 review notes that tea from unwashed seeds can cause effects and withdrawal if stopped. [8]
References
- Wikipedia — Poppy seed. https://en.wikipedia.org/wiki/Poppy_seed (accessed 2026-10-24)
- Taste — Poppy seeds beyond the lemon muffin. https://tastecooking.com/poppy-seeds-beyond-the-lemon-muffin/ (accessed 2026-10-24)
- Fooby — Poppy seeds, food lexicon. https://fooby.ch/en/cookery-school/food-lexicon/poppy-seeds.html (accessed 2026-10-24)
- EFSA — EFSA assesses public health risks of opium alkaloids in poppy seeds, 8 November 2011. https://www.efsa.europa.eu/en/press/news/111108b (accessed 2026-10-24)
- EFSA CONTAM Panel — Update of the Scientific Opinion on opium alkaloids in poppy seeds. EFSA J 2018; abstract read via Europe PMC. https://europepmc.org/article/MED/32625895 (accessed 2026-10-24)
- Carlin MG et al. — Opium alkaloids in harvested and thermally processed poppy seeds. Front Chem 2020; abstract read via Europe PMC. https://pubmed.ncbi.nlm.nih.gov/33195013/ (accessed 2026-10-24)
- Quantification of morphine, codeine, and thebaine in home-brewed poppy seed tea by LC-MS/MS. J Forensic Sci 2018; abstract read via Europe PMC. https://pubmed.ncbi.nlm.nih.gov/28973785/ (accessed 2026-10-24)
- Poppy seed tea: a short review and case study. Pain Ther 2019; abstract read via Europe PMC. https://pubmed.ncbi.nlm.nih.gov/30719627/ (accessed 2026-10-24)
- Concentrations of morphine and codeine in paired oral fluid and urine specimens following ingestion of a poppy seed roll and raw poppy seeds. J Anal Toxicol 2015; abstract read via Europe PMC. https://pubmed.ncbi.nlm.nih.gov/26378141/ (accessed 2026-10-24)
- Poppy seed consumption may be associated with codeine-only urine drug test results. J Anal Toxicol 2023; abstract read via Europe PMC. https://pubmed.ncbi.nlm.nih.gov/36181466/ (accessed 2026-10-24)
- Poppy seed allergy: molecular diagnosis and cross-reactivity with tree nuts. J Allergy Clin Immunol Pract 2024; abstract read via Europe PMC. https://pubmed.ncbi.nlm.nih.gov/38734371/ (accessed 2026-10-24)
- USDA FoodData Central, SR Legacy (April 2018) — Spices, poppy seed (fdc_id 171330), per-100 g values and household portions from the site's USDA data file.