Cumin

Cumin seeds are not quite seeds. Each one is a whole dried fruit of Cuminum cyminum, an annual herb 30 to 50 cm (12 to 20 in) tall in the parsley family, and each fruit holds a single seed about 5 mm long. The warm, earthy smell comes mainly from a compound called cuminaldehyde.

Cumin is rich in iron gram for gram, but nobody eats it by the gram. A teaspoon of ground cumin (2.1 g) has 8 calories and 1.39 mg of iron, which is 8% of the US daily value, and no other herb or spice among the 23 on this site has more iron per gram. The same teaspoon holds 0.4 g of protein and 0.2 g of fiber, so cumin flavors a meal more than it feeds you.

Cumin is not black cumin or black seed (Nigella sativa), a different plant with far more research, and none of the studies below used it. Most research on cumin tests capsules, essential oil or extracts, and the human trials are small, with most coming from Iran. Only 2 of the studies below gave people plain cumin powder.

Health benefits of cumin

• ★★Lower LDL in one pooling, not in anotherAcross 6 small trials, cumin supplements lowered LDL by about 7 mg/dL and raised HDL by about 3 mg/dL. Another pooling of 8 trials found no overall change in LDL, and these were supplement doses.
• ★★Lower body mass index and weightPooling 8 trials of supplements, BMI was lower by 0.88 kg/m². In 88 overweight or obese women on diet advice, 3 g of cumin powder a day lowered weight, waist size and body fat.
• ★Mixed results on fasting blood sugarPooled analyses disagree: one found no significant drop in fasting blood sugar, while two found lower levels. Cumin oil capsules lowered HbA1c in two trials in people with diabetes.
• ★Faster return of bowel function after surgeryIn 74 patients after abdominal surgery, two doses of cumin extract capsules brought the first bowel movement back at about 17 hours instead of 26. It tested a short hospital course, not daily use.
• ★Signs of more breast milk in new mothersIn 117 new mothers, 15 cumin drops three times a day for 4 weeks improved all five measures of milk sufficiency more than placebo. The measures are indirect, such as infant weight and wet diapers.

Who should be careful with cumin

Most people can eat cumin freely. Take a little care if one of these applies:

• Allergy. Cumin allergy is uncommon but real. A 2026 review reports that cumin allergens belong to the PR-10 family and that cross-reactions with other parsley-family plants are common, and a 2026 report describes a child who had anaphylaxis from breathing in cumin. If you react to several spices, ask an allergist.
• Severe peanut allergy and ground cumin. In 2015 the FDA reported shipments of ground cumin that tested positive for undeclared peanut protein, and advised people with severe peanut allergy to consider avoiding products with ground cumin. It said products made before 2014 were unlikely to be affected. Read labels and call the maker if only “spices” is listed.
• Cumin capsules or oil with diabetes medicine. Several trials here saw lower blood sugar on cumin supplements, and in diabetic rats a cumin extract changed the blood levels of the drug glyburide. No human trial here tested drug interactions, so ask your care team before taking capsules or oil. Cumin in cooking is not the concern.

How to choose, store and eat cumin

• Ground, about 1 teaspoon a day: a level teaspoon weighs 2.1 g, and 29 adults who ate 2 g of cumin powder a day for 2 months had lower LDL cholesterol.
• With yogurt: overweight women in a 3-month trial ate 3 g of cumin powder a day stirred into yogurt at two meals, alongside diet counseling.
• Whole seeds, toasted: toasting in a dry pan adds aroma compounds called pyrazines, and no study here compares whole seeds with ground cumin or raw with toasted. Capsules and oil, such as 50 to 100 mg of essential oil a day, are a different product from the spice.

Whole spices keep their quality longer than ground ones, so buy whole seeds if you can and grind them as you need them. Keep cumin in an airtight container in a dry place away from sunlight and heat, not above the stove, and replace it when the smell fades; Penn State Extension suggests checking ground spices for freshness after six months.

History of cumin

People have used cumin as a spice for thousands of years, though nobody knows exactly where it was first grown. It likely comes from Central Asia, Southwest Asia or the eastern Mediterranean. Wild cumin seeds were found at Atlit-Yam, a submerged settlement off Israel, dated to the early 6th millennium BC, and seeds from Syria date to the 2nd millennium BC.

Cumin reached Egypt by the New Kingdom, where seeds turn up at several sites, and it was used as a spice and in mummification. The word itself traveled too. English cumin comes from Latin cuminum and Greek kyminon, borrowed from a Semitic language and traced to the Akkadian kamūnu and the Sumerian gamun.

The Greeks kept cumin on the dinner table in its own container, much as we keep pepper, and Roman cooks used it heavily. The prophet Isaiah describes farmers sowing cumin and beating it out with a stick rather than rolling a cart wheel over it. Cumin also gave ancient Greek an insult. In Aristophanes’ comedy Wasps, a man is called a “cumin-splitter,” and a classical scholar notes that splitting cumin was a regular expression for stinginess.

Spanish and Portuguese colonists brought cumin to the Americas, where it is now part of chili powder, garam masala, curry powder and many other blends. India now grows about 70% of the world’s cumin, followed by Syria (13%) and Turkey (5%). In North Indian cooking it often pairs with coriander seed as dhana jeera.

Cumin is easy to mix up with caraway, another parsley-family spice. Many languages do not tell them apart, and Indonesian calls both jinten. Three unrelated or distant plants are also called black cumin, including Nigella sativa, which is why a label that says “black cumin” is not the spice in your jar.