Teff: Nutrients, What Research Shows and Safety
Teff as a food: USDA nutrient values, an honest look at the weak human evidence, why it is gluten-free, phytic acid and what is not known about allergy.
Content last updated . This page has not been medically reviewed.
Teff is the seed of Eragrostis tef, a tiny-grained cereal grass grown in Ethiopia, where it has long cultural importance. [1] It is eaten as a whole grain or ground into flour. [2] People eat teff for minerals and fiber, and because it is naturally gluten-free. This page keeps the whole grain apart from supplements, and apart from hype. Traditional health claims are described separately from trial evidence.
Read this first
- Naturally gluten-free. The Celiac Disease Foundation lists teff among gluten-free grains and advises against bulk bins because of cross-contact. [3] NIDDK's list does not name teff. [4] A US "gluten-free" label means under 20 ppm of gluten and is voluntary. [5]
- Very high in manganese. One cup cooked gives about 7 mg by USDA data, more than three times the Daily Value, which is a labeling reference and not a limit. [6] We did not read a source on an upper limit for manganese from food.
- Evidence in one line: we found no human trial of teff on cholesterol, blood sugar or other health outcomes. Reviews repeat health claims, and a community study records traditional beliefs, which are not trial evidence. [2] [1]
- Allergy: we did not find a source we could read on teff allergy. For any food reaction with trouble breathing or swelling of the face or throat, call 911 (or your local emergency number). [7]
What is in it (USDA values)
The values below are for cooked teff (USDA FoodData Central item 168918, SR Legacy). [6] The serving column is the USDA household portion, 1 cup cooked, which USDA lists as 252 g. [6]
| Nutrient | Per 100 g | Per 1 cup cooked (252 g) | % Daily Value per serving |
|---|---|---|---|
| Energy | 101 kcal | 255 kcal | not set |
| Total fat | 0.65 g | 1.6 g | 2% |
| Protein | 3.87 g | 9.8 g | 20% |
| Fiber | 2.8 g | 7.1 g | 25% |
| Manganese | 2.86 mg | 7.2 mg | 313% |
| Iron | 2.05 mg | 5.2 mg | 29% |
| Magnesium | 50 mg | 126 mg | 30% |
| Phosphorus | 120 mg | 302 mg | 24% |
| Copper | 0.226 mg | 0.57 mg | 63% |
| Zinc | 1.11 mg | 2.8 mg | 25% |
| Calcium | 49 mg | 123 mg | 9% |
| Thiamin (B1) | 0.183 mg | 0.46 mg | 38% |
| Folate (DFE) | 18 mcg | 45 mcg | 11% |
| Potassium | 107 mg | 270 mg | 6% |
% Daily Value uses the FDA 2016 Daily Values; values vary with variety growing place and cooking water. The serving figures are the 100 g values multiplied by 2.52. For comparison, USDA lists dry (uncooked) teff at 367 kcal, 13.3 g protein, 8.0 g fiber, 7.63 mg iron and 180 mg calcium per 100 g, and 0.135 g of ALA omega-3 per 100 g. [8] USDA lists no vitamin B12 in cooked teff. [6]
Plant compounds: a 2025 overview says teff contains flavonoids and phenolic acids. [2] A 2026 lab study extracted phenolic compounds from teff flour, including epicatechin, hesperidin and ferulic acid, and measured their antioxidant activity in the lab. [9] We found no human trial showing these compounds act when the cooked grain is eaten.
What research says
| Health goal | What the sources found | Strength of evidence | What was studied |
|---|---|---|---|
| Cholesterol, blood sugar, bones, immunity | A 2025 overview states that teff reduces cholesterol, stabilizes blood sugar and supports bones and immunity, but the abstract does not name human trials. [2] We found no trial of teff itself in the sources we read. | Insufficient evidence | Review statements, lab and food-science work |
| Anemia and iron | Proper evidence not found in the sources we read for teff. A systematic review of bread and iron in people noted that fermented amaranth bread, not teff, raised hemoglobin in anemic children. [10] | No good evidence of benefit found for teff | Not applicable |
| Traditional uses | A community study in Western Ethiopia recorded local beliefs that dabi teff foods increase blood volume, boost energy and strengthen bones. [1] This records belief, not measured effects. | Insufficient evidence (traditional use only) | Focus groups and interviews |
| Gluten-free diets | Naturally gluten-free cereals and pseudocereals can improve the nutritional quality of a gluten-free diet, according to a 2026 review that does not single out teff. [11] | Insufficient evidence for teff specifically | Narrative review |
| Heart attacks, strokes, diabetes onset | Proper evidence not found in the sources we read. | No good evidence of benefit found | Not applicable |
| Whole grains in general and long-term health | A pooled analysis of 45 prospective studies found that people who ate more whole grains had lower risk of heart disease and death. [12] Observational studies cannot prove cause, and teff was not analyzed on its own. | Promising but limited (observational, not teff-specific) | Whole grain intake in general |
We did not check funding in every study; abstracts often do not say. The sources above are reviews, lab or food-science studies and an interview study, not trials of eating teff.
Eaten as food vs taken as an extract or supplement. Teff extracts are a lab topic. [2] We did not read a human trial of either the grain or an extract.
How much is a normal serving
The USDA household portion for cooked teff is 1 cup (252 g), which has about 254 kcal; for dry teff it is 1 cup (193 g). [6] [8] That is information from the USDA data, not a prescription. Harvard's Nutrition Source lists teff among the unprocessed whole grains. [13] The NHS advises wholegrain starchy foods as a fiber source, without naming teff. [14]
Safety, allergy and medicines
- Celiac disease and gluten: teff is naturally gluten-free. [3] [2] NIDDK's list does not name teff, so ask your care team if unsure. [4] Cross-contact can occur during growing, processing and cooking, so look for a gluten-free label. [4] [5]
- Phytic acid: in a food-science study, gluten-free noodles with added teff and flaxseed flours had higher phytic acid than the control noodles. [15] A systematic review on bread found that lowering phytate raised iron absorption in single-meal studies, but long-term studies did not improve iron stores. [10] See antinutrients: phytates and lectins in whole grains.
- Allergy: we did not find a source we could read on teff allergy. Anaphylaxis is a medical emergency, so call 911. [7] See food allergy basics and emergency signs.
- Medicines, pregnancy, kidney disease, children: we read no source on teff for these groups or on interactions. See foods and medicine interactions, foods in pregnancy and foods and kidney disease.
Choosing, storing and food safety
- For gluten-free diets, choose packages labeled gluten-free and avoid bulk bins. [3]
- Teff is sold as whole grain and flour; the USDA values here are for the cooked whole grain. [6]
- We did not read a source with specific storage advice for teff. See food storage, leftovers and food safety basics.
Related pages
Health connections for Teff
What research links to eating or drinking this food, and how strong the evidence is. Many studies are observational or use juice, powder, oil or extracts rather than the food as eaten; each card says which.
Teff and human health outcomes: evidence gap
Not enough evidenceA 2025 overview says teff reduces cholesterol and stabilizes blood sugar, but we found no human trial of teff in the sources we read. Treat these claims as unproven.
Supplements: Review statements and food-science work only.
Traditional health beliefs about teff
Not enough evidenceA community study in Western Ethiopia recorded beliefs that dabi teff foods increase blood volume, boost energy and strengthen bones. This is belief, not measured effect.
Supplements: Interviews and focus groups.
Teff in gluten-free diets
Not enough evidenceA 2026 review says naturally gluten-free cereals and pseudocereals can improve the nutritional quality of a gluten-free diet; it does not single out teff.
Supplements: Narrative review, not teff-specific.
Phenolic compounds in teff
Lab or animal research onlyA 2025 overview says teff contains flavonoids and phenolic acids, and a 2026 lab study measured phenolics such as ferulic acid and antioxidant activity in flour extracts.
Supplements: No human outcome read.
Whole grains and long-term health (not teff-specific)
Preliminary or mixedA pooled analysis of 45 observational studies linked more whole grains to lower risk of heart disease and death. This cannot prove cause and does not isolate teff.
Supplements: Information about whole grains in general.
Minerals in a serving (manganese, copper, magnesium, iron)
Established roleOne cup cooked gives about 313% DV manganese, 63% copper, 30% magnesium and 29% iron by USDA data; the Daily Value is a label reference, not a limit.
Supplements: Dietary role only; no trial shows eating teff changes iron status.
Connected topics
Open a group to see how each topic connects and how strong the evidence is.
Habits (1)
- Balanced NutritionPreliminary or mixed
A whole-grain choice; observational data link more whole grains to lower risk, not teff-specific.
Conditions & symptoms (1)
- Celiac DiseaseDocumented risk
Teff is naturally gluten-free (Celiac Disease Foundation); cross-contact can occur; choose labeled products (under 20 ppm).
Documented risks and interactions (3)
- Naturally gluten-free grain and cross-contact. Teff is naturally gluten-free. It can pick up gluten in processing; a US gluten-free label means under 20 ppm. NIDDK's food list does not name teff.
- Phytic acid and mineral absorption. Gluten-free noodles with added teff and flaxseed flours had higher phytic acid in a food-science study. A systematic review on bread found that lowering phytate raised iron absorption in single-meal studies but long-term studies did not improve iron stores.
- Food allergy: no teff-specific source read. We did not find a source we could read on teff allergy. Call 911 for trouble breathing or swelling of the face or throat after any food.
Frequently asked questions
Is teff gluten-free?
Yes, teff is naturally gluten-free. [3] Look for a gluten-free label if you have celiac disease, because of cross-contact. [5] NIDDK's list does not name teff. [4]
Is teff high in iron?
USDA lists 2.05 mg of iron per 100 g cooked teff (11% of the Daily Value) and 7.63 mg per 100 g dry. [6] [8] We found no trial showing that eating teff raises iron levels in people.
Does teff lower cholesterol or blood sugar?
A 2025 overview says it does, but we found no human trial of teff in the sources we read. [2] Treat it as unproven.
Why is the manganese so high?
USDA lists 2.86 mg manganese per 100 g cooked teff (124% of the Daily Value). [6] We did not read a source on why or on upper limits from food.
Can teff cause an allergic reaction?
We did not find a source we could read on teff allergy. Call 911 for trouble breathing or swelling of the face or throat after any food. [7]
References
- Tura DC. Ethnographic qualitative study to explore the sociocultural values, nutritional potential, and health benefits of Dabi teff grown in Western Ethiopia. 2025. (abstract read via Europe PMC) Read 2026-10-24.
- Abebe BS et al. Nutritional characteristics, health-related properties, and food application of teff (Eragrostis tef): an overview. 2025. (abstract read via Europe PMC) Read 2026-10-24.
- Celiac Disease Foundation. Gluten-free foods. Read 2026-10-24.
- NIDDK. Eating, diet and nutrition for celiac disease. Read 2026-10-24.
- FDA. Questions and Answers: Gluten-Free Food Labeling Final Rule. 2022. (content current as of 2022-06-30) Read 2026-10-24.
- U.S. Department of Agriculture. FoodData Central: Teff, cooked (SR Legacy, FDC 168918). April 2018 release. Read 2026-10-24.
- MedlinePlus. Food allergy. Read 2026-10-24.
- U.S. Department of Agriculture. FoodData Central: Teff, uncooked (SR Legacy, FDC 169747). April 2018 release. Read 2026-10-24.
- Abebe BS et al. Physicochemical characterization and optimized ultrasound-assisted extraction of bioactive compounds from teff (Eragrostis tef): phenolic profile, antioxidant activity, prebiotic potential, and phytic acid degradation. 2026. (abstract read via Europe PMC) Read 2026-10-24.
- Nikolaou A et al. Effects of sourdough- or regular-bread fermentation, and phytate reduction on iron bioavailability, absorption, and iron status in humans: a systematic review of intervention studies. 2026. (abstract read via Europe PMC) Read 2026-10-24.
- Boatta A et al. Narrative review of celiac disease and sports: nutritional deficiency and strategies to optimise athlete health and performance. 2026. (abstract read via Europe PMC) Read 2026-10-24.
- Aune D et al. BMJ. Whole grain consumption and risk of cardiovascular disease, cancer, and all cause and cause specific mortality: systematic review and dose-response meta-analysis of prospective studies. 2016. (abstract read via Europe PMC) Read 2026-10-24.
- Harvard T.H. Chan School of Public Health. Whole grains (The Nutrition Source). Read 2026-10-24.
- NHS. Starchy foods and carbohydrates. Read 2026-10-24.
- Kurt E et al. Effect of teff and flaxseed flours on physicochemical, textural, and sensory properties of gluten-free noodles. 2025. (abstract read via Europe PMC) Read 2026-10-24.