Saffron: Flavor, Cooking Use and Health Facts
Saffron is floral, honey-like and slightly bitter and gives rice and stews a golden color; trials of supplements suggest lower self-rated low mood, but cooking amounts are not studied and fakes are common.
Content last updated . This page has not been medically reviewed.
In the kitchen at a glance
Flavor:FloralSweetBitter
Aroma: Hay-like and honeyed, floral, with a faint medicinal edge.
Used in: rice and grains, soups and stews, desserts, tea and drinks, baking
Usual amount in food: A few threads to a small pinch per dish; USDA lists 0.7 g per teaspoon of saffron. We found no reliable source for a standard recipe amount.
What it is
Saffron is the dried red threads (the stigmas, and part of the style) of the autumn-flowering crocus, Crocus sativus. [1] The plant is sterile, so growers multiply it by dividing the underground corms by hand. [1] Iran produces about 90% of the world's saffron; Afghanistan, Greece, Spain, Morocco and Kashmir also grow it. [1] About 150 flowers are needed for one gram of dry saffron. That is why it is the most expensive spice by weight. [1]Flavor and aroma
Saffron tastes floral and honey-like, with a slightly bitter edge. Three compounds do most of the work, according to Wikipedia's summary: picrocrocin gives the bitter taste, safranal gives much of the aroma, and crocin gives the golden-yellow color. [1] Drying splits picrocrocin into safranal and sugar. [1] The same page says a hay-like compound called lanierone adds to the fragrance. [1] Light, oxygen and changes in acidity break the compounds down, so old or badly stored saffron fades. [1]How it is used in cooking
Saffron is sold as whole threads and as powder. Threads are usually released into liquid before use. One cooking guide gives these ways to do it: [2]- Hot bloom: crush 8 to 12 threads into a fine powder, then steep them in a few tablespoons of very hot water, milk or stock for 15 to 20 minutes. [2]
- Cold bloom: sprinkle the ground threads over a few ice cubes and let them melt slowly, which some cooks prefer to protect the flavor. [2]
- No mortar: steep whole threads in warm water, then lift them out before adding the liquid. [2]
- Straight into the pot: threads go directly into soup, paella or risotto, where the long cooking time lets them release color. [2]
That guide is from a saffron seller, so treat the timings as one cook's method, not a rule.
Around the world, saffron appears in:
- Persian cooking: chelow rice, crispy tahdig, stews such as fesenjan, and the desserts sholeh-zard and saffron ice cream. [1]
- Italian cooking: risotto alla Milanese. [1]
- Spanish cooking: paella. [1]
- French cooking: bouillabaisse fish stew. [1]
- South Asian cooking: biryani. [1]
- Sweets and drinks: confectionery, liqueurs, and cocktail syrup. [1][2]
Wikipedia lists safflower ("Portuguese saffron"), annatto and turmeric as colour substitutes. [1] They add color but not saffron's flavor. The sources we read give no flavor-matched substitute.
Normal food amounts
| Measure | Grams | Source |
|---|---|---|
| 1 teaspoon | 0.7 g | USDA [11] |
| 1 tablespoon | 2.1 g | USDA [11] |
| Typical recipe amount | Not found | One seller says 8 to 12 threads are ground for a bloom; no source we opened states a standard amount per dish [2] |
What one teaspoon (0.7 g) provides, calculated from USDA values per 100 g:
| Nutrient | One teaspoon |
|---|---|
| Energy | about 2 kcal |
| Manganese | about 0.2 mg |
| Potassium | about 12 mg |
| Iron | about 0.08 mg |
| Vitamin C | about 0.6 mg |
The USDA SR Legacy data are from 2018, and real products vary. [11] We did not compare these with official daily values, so we do not call saffron a good source of anything. Cooks use a pinch, far less than a teaspoon, so the nutrients are tiny. Saffron is for color and flavor.
Buying, storing and preparing
- Forms: whole threads, powder, and extracts sold as supplements. Grades follow how much red stigma versus pale yellow style is in the pack, and an international standard (ISO 3632) sorts saffron into categories I to III from lab tests. [1]
- Fakes: reviews estimate that 20 to 30% of commercial saffron worldwide is adulterated, from 3.5% in regulated EU markets to 60% in India. Common fakes use safflower, marigold or turmeric, bulking with other plant material, or added dyes, some of them hazardous. [9] Powder is easier to fake than whole threads. [1]
- Weighting: soaking threads in honey or oil adds weight. [1]
- Storage: keep it in an airtight container, away from light, because light and oxygen break down the main compounds. [1] The sources we read give no shelf life.
- Prices: wholesale and retail prices run from about US$1,100 to $11,000 per kg, so a small pack is costly. [1]
Health: what research says
Eating a few threads in a dish is very different from taking concentrated saffron capsules or extracts.Food amounts vs supplements
| In normal cooking | In supplements and extracts | |
|---|---|---|
| Typical amount | A few threads; USDA lists 0.7 g per teaspoon [11] | Trials mostly used about 15 to 100 mg a day; one mood trial used 30 mg of a standardized extract for 8 weeks [12][6] |
| What studies mostly used | We found no study of saffron eaten as seasoning | Stigma powder and extracts, in capsules, for at least 4 weeks [4] |
| What we can say about benefit | Nothing, because it has not been studied | Some trials and reviews report lower depression and anxiety scores [4][5] |
| Main safety limit | Considered safe by a 2026 safety review [12] | Mostly mild stomach upset; bleeding and mood cautions; pregnancy limits [3][12][8] |
What the evidence shows
| Use | What the sources found | Strength of evidence | Form and population |
|---|---|---|---|
| Depression and anxiety scores | A 2026 pooling of 34 trials (1,769 adults, 4 weeks or more) found lower self-rated depression (BDI) and anxiety (BAI) scores, but no significant change on clinician-rated scales; results varied a lot between trials. [4] | Mixed | Supplements, various products; adults [4] |
| Saffron compared with SSRIs | A pooling of 8 trials for depression and 4 for anxiety found no significant difference from SSRI antidepressants, with fewer side effects on saffron. [5] This is not a reason to stop a prescribed medicine. | Promising but limited | Supplements vs SSRIs; adults [5] |
| Mild low mood in healthy adults | In an 8-week trial of 56 adults, 30 mg a day of a standardized extract was linked to lower depression scores than placebo. [6] | Promising but limited | One extract; healthy adults aged 18 to 54 [6] |
| Blood sugar, blood pressure, cholesterol, thinking | A review of 19 pooled analyses reported lower fasting glucose, diastolic blood pressure, total and LDL cholesterol, but results differed and review quality needed work. [7] | Mixed | Supplements; adults [7] |
| Labor and pregnancy | A 2026 review of 12 studies called the evidence limited and inconclusive. [8] | Insufficient evidence | Low-dose supplements; pregnant women [8] |
| Any use of saffron as seasoning | No study found | Insufficient evidence | Food amounts |
For supplement forms, trials and interactions in depth, see the full herb guide: Saffron.
Official statements
- EMA, EFSA, FDA, WHO/JECFA, NCCIH: we found no saffron page from these bodies that we could open, so we state no official position. A web search found no daily limit from EFSA, EMA or JECFA.
Related pages
Health connections for Saffron
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.
Self-rated depression and anxiety scores
Preliminary or mixedA 2026 pooling of 34 trials found lower self-rated depression and anxiety scores with saffron supplements, but no significant change on clinician-rated scales.
Supplements: Supplement finding only; results varied widely between trials; no study of food amounts found. It is not a treatment.
Compared with SSRI antidepressants
Preliminary or mixedA pooling of head-to-head trials found no significant difference between saffron and SSRIs for depression or anxiety scores, with fewer side effects on saffron.
Supplements: Supplement finding only; does not mean saffron can replace a prescribed medicine.
Blood sugar, blood pressure and cholesterol markers
Preliminary or mixedA review of 19 pooled analyses reported lower fasting glucose, diastolic blood pressure, total and LDL cholesterol, but results differed and review quality needed improvement.
Supplements: Supplement finding only; mixed; no food-amount study found.
Labor and pregnancy outcomes
Not enough evidenceA 2026 review of 12 studies called the evidence on saffron in pregnancy and childbirth limited and inconclusive.
Supplements: Insufficient evidence; higher doses were linked to uterine stimulation.
Connected topics
Open a group to see how each topic connects and how strong the evidence is.
Health goals (2)
- Mood BalancePreliminary or mixed
Trials of saffron supplements report lower self-rated depression and anxiety scores; clinician-rated scales did not change significantly and cooking amounts are not studied.
- Anxiety SupportPreliminary or mixed
Self-rated anxiety scores were lower in pooled supplement trials; clinician-rated anxiety scale (HARS) was not significant.
Body systems (1)
- Stress & MoodPreliminary or mixed
Supplement trials of saffron report lower self-rated depression and anxiety scores; the finding is not for food amounts.
Functional actions (1)
- Mood SupportPreliminary or mixed
Supplement trials report lower self-rated depression scores; clinician-rated scales did not change significantly.
Root causes (1)
- Medication Side EffectsDocumented risk
A bleeding case was reported with saffron supplements and rivaroxaban; mood medicines and mental health conditions call for caution.
Conditions & symptoms (3)
- Bipolar DisorderDocumented risk
Hypomania and irritability were reported as side effects of saffron supplements; people with bipolar disorder should ask a clinician first.
- Depressive DisorderPreliminary or mixed
Supplement trials report lower self-rated depression scores and no significant difference from SSRIs; clinician-rated scales did not change significantly. Not a treatment.
- AnxietyPreliminary or mixed
Self-rated anxiety scores were lower in pooled supplement trials; clinician-rated scales were not significant.
Documented risks and interactions (5)
- Bleeding with blood thinners. One case report described acute bleeding in a man taking rivaroxaban with a saffron supplement.
- Mood changes and mania. Reported side effects included nervousness, irritability, hypomania and restlessness; people with psychiatric conditions are flagged for caution.
- Pregnancy: uterine stimulation and miscarriage risk. A 2026 review linked higher doses or occupational exposure to uterine stimulation and increased miscarriage risk.
- Side effects in trials. In 102 trials the estimated rate of adverse events was about 17.5%, mostly minor, self-limiting stomach problems; higher doses or long use call for monitoring.
- Adulteration and supplement quality. Reviews estimate 20 to 30% of commercial saffron is adulterated, with dyes and look-alike plants; in a lab test of 17 supplements, content did not match the label in 65%.
Frequently asked questions
Is saffron sweet?
Not quite. It tastes floral and honey-like with a slightly bitter edge. [1]
How much is normal?
USDA lists 0.7 g per teaspoon. [11] Cooks use a pinch or a few threads. We found no reliable source for a standard amount.
Is it safe in pregnancy?
Evidence is limited, and a 2026 review linked higher doses to uterine stimulation and miscarriage risk. [8] Ask your midwife or doctor before using more than a little in cooking.
Can I take it with medicines?
In cooking, the sources we read name no problems. A bleeding case was reported with a blood thinner and a supplement, and mood medicines call for a check. [12] Ask a pharmacist.
Does it help with low mood?
Pooled trials of supplements report lower self-rated depression scores, but clinician-rated scores did not change significantly. [4] Seasoning amounts were not studied, and it is not a treatment.
How can I tell if saffron is fake?
Reviews say fakes are common and need lab tests to confirm. [9] Buying from a trusted seller is the practical step.
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: a safety review reported one case of bleeding in a man taking rivaroxaban with a saffron supplement, per our herb guide. [12] Ask a pharmacist about blood thinners. See Herbs and blood thinners.
- Pregnancy: a 2026 review linked higher doses, and occupational exposure, to uterine stimulation and a higher chance of miscarriage; the evidence is limited. [8] Cooking amounts were not described. Ask a prenatal clinician.
- Breastfeeding: the sources we read give no specific finding. Our herb guide says safety data are limited. [12]
- Children: the sources we read do not describe this.
- Allergy: an allergic reaction was reported in trials. [12] The sources we read give no specific food-allergy data for saffron.
- Mental health: our herb guide notes nervousness, irritability and hypomania among reported side effects, so people with bipolar disorder should ask a clinician first. [12]
- Liver and kidney: the sources we read do not describe this.
- Surgery: the sources we read do not describe a warning. Tell your surgical team about any supplement.
- Quality and contamination: 17 saffron supplements were tested, and the content did not match the label in 65% of them; some had undeclared additives or other plants. [10] Reviews report added dyes in some saffron. [9]
- Amounts that cause trouble: a 2026 review of 102 trials found side effects in about 17.5%, mostly mild stomach complaints, and said higher doses or longer use call for monitoring. [3] Wikipedia says under 1.5 g is not toxic, and above 5 g becomes increasingly toxic with dizziness, vomiting and bleeding. [1] That figure comes from an encyclopedia, not a regulator, so use it as a rough guide only.
References
- Wikipedia — Saffron (first 100,000 characters read). https://en.wikipedia.org/wiki/Saffron (accessed 2026-10-24)
- Rumi Spice (a saffron seller) — Guide to cooking with saffron threads. https://www.rumispice.com/blogs/blog/how-to-use-rumi-saffron-threads (accessed 2026-10-24)
- Hasheminasab FS et al. — Adverse events of saffron (Crocus sativus L.): systematic review. Health Sci Rep 2026; abstract read via Europe PMC. https://pubmed.ncbi.nlm.nih.gov/42057871/ (accessed 2026-10-24)
- Mahmoudi R et al. — Effect of saffron on depression, anxiety and mood disorder: GRADE-assessed meta-analysis of 34 RCTs. Nutr Neurosci 2026; abstract read via Europe PMC. https://pubmed.ncbi.nlm.nih.gov/41693488/ (accessed 2026-10-24)
- Shafiee A et al. — Saffron versus SSRIs in depression and anxiety: meta-analysis. Nutr Rev 2025; abstract read via Europe PMC. https://pubmed.ncbi.nlm.nih.gov/38913392/ (accessed 2026-10-24)
- Jackson PA et al. — Effects of saffron extract supplementation on mood, well-being and response to a psychosocial stressor in healthy adults. Front Nutr 2020; abstract read via Europe PMC. https://pubmed.ncbi.nlm.nih.gov/33598475/ (accessed 2026-10-24)
- Saffron and health outcomes: a meta-research review of meta-analyses and evidence mapping. Phytomedicine 2021; abstract read via Europe PMC. https://pubmed.ncbi.nlm.nih.gov/34419735/ (accessed 2026-10-24)
- Saffron and pregnancy: cultural practices, beliefs and safety evidence, an integrative review. J Evid Based Integr Med 2026; abstract read via Europe PMC. https://pubmed.ncbi.nlm.nih.gov/42186868/ (accessed 2026-10-24)
- Mehdizadeh M et al. — Combating saffron fraud: systematic review. Crit Rev Food Sci Nutr 2026; abstract read via Europe PMC. https://pubmed.ncbi.nlm.nih.gov/40792566/ (accessed 2026-10-24)
- Combined gas and liquid chromatographic approach for quality evaluation of saffron-based food supplements. Foods 2023; abstract read via Europe PMC. https://pubmed.ncbi.nlm.nih.gov/38002129/ (accessed 2026-10-24)
- USDA FoodData Central, SR Legacy (April 2018) — Spices, saffron (fdc_id 170934), per-100 g values and household portions from the site's USDA data file.
- alternativemed.com — Saffron herb guide, which read the full text of the adverse-events review (PMC13121846). /herbs-botanicals/saffron (accessed 2026-10-24)