Teff Nutrition Calculator

Teff (Eragrostis tef (Zucc.) Trotter) is a warm-season annual cereal grass in the Poaceae family. It is the smallest grain in the world — individual seeds measure just 0.9–1.7 mm in length and weigh about 0.2–0.4 mg, making it roughly 150 times lighter per kernel than a single wheat grain.

Teff was domesticated in the Ethiopian Highlands between 4000 and 1000 BC and remains Ethiopia’s most important cereal crop, accounting for about 24% of the total grain area and feeding over 70 million people. The grain comes in colours ranging from milky-white to deep brown, with white teff fetching a premium in Ethiopian markets.

Because of its tiny grain size, teff is almost always consumed as whole grain — the bran and germ are included in the flour — which preserves its fiber, mineral, and micronutrient content. This is a key reason teff has one of the most nutrient-dense profiles among cereal grains.

Teff is naturally gluten-free. A study in the New England Journal of Medicine (Dekking et al., 2005) confirmed that teff lacks the T-cell-stimulatory gluten peptides found in wheat, barley, and rye, making it a viable grain for gluten-free diets.

Sources: Gebremariam et al. (2012) – J Food Sci Technol, Baye (2014) – IFPRI ESSP Working Paper, Kolhe et al. (2024) – Mysore J. Agric. Sci..

Raw teff grain contains 367 kcal per 100g according to USDA FoodData Central (SR Legacy, NDB 20143). This places teff in the mid-to-upper range of cereal energy density — comparable to wheat (340 kcal) and slightly lower than proso millet (378 kcal).

When boiled or cooked as porridge, teff absorbs roughly three times its weight in water, yielding approximately 121 kcal per 100g cooked (cooking factor 0.33). A typical 1-cup cooked serving (~170g) provides about 206 kcal.

The calorie distribution by macronutrient: approximately 14% from protein, 80% from carbohydrates, and 6% from fat (using Atwater factors: protein 4 kcal/g, carbs 4 kcal/g, fat 9 kcal/g).

Source: USDA FoodData Central – SR Legacy.

Below are the canonical raw values per 100g used in this calculator:

Net carbs: 65.1g per 100g raw (73.1g total carbohydrates minus 8.0g fiber). The standout nutrients are manganese (402% DV), magnesium (44% DV), and iron (42% DV).

Reference: USDA FoodData Central – SR Legacy. DV based on FDA 2020+ 2,000 kcal diet.

Teff contains 7.63mg iron per 100g (42% DV) according to USDA data. Some earlier analyses — notably Bultosa & Taylor (2004) — reported values as high as 15.7mg per 100g, depending on cultivar, growing region, and soil iron availability.

The wide range in reported iron values (7–16mg) is well-documented across the literature. According to the PMC review by Gebremariam et al. (2012), teff’s iron content is influenced by variety (brown varieties tend to have higher mineral content than white varieties) and post-harvest handling. Some iron may also come from the traditional stone grinding process used in Ethiopia, where iron particles from the milling stones enter the flour.

Researchers in Ethiopia have observed a correlation between teff consumption and hemoglobin levels: populations with high teff intake showed higher hemoglobin levels compared to non-teff consumers (Molineaux & Biru, 1965; cited in Gebremariam et al., 2012). This is an observational finding, not a clinical intervention.

As with all plant-based iron sources, bioavailability depends on the food matrix. Fermentation — as in injera preparation — may improve mineral bioavailability by reducing phytic acid content.

Sources: Gebremariam et al. (2012) – J Food Sci Technol, USDA FoodData Central.

Teff provides 180mg calcium per 100g (14% DV), which is notably higher than most other cereal grains. For comparison: wheat contains about 34mg, brown rice about 7mg, and pearl millet about 42mg per 100g.

Among commonly consumed grains worldwide, only finger millet (ragi) has a higher calcium concentration at 344mg per 100g. The Bultosa & Taylor (2004) review reports teff calcium at 165.2mg per 100g, while the USDA value used in this calculator is 180mg — the difference reflects cultivar and analytical methodology variation.

A 2007 patent analysis (Roosjen, 2007) noted that flour should ideally contain at least 0.15% calcium (150mg/100g) for nutritional significance. Teff naturally exceeds this threshold, whereas wheat, barley, maize, and rice do not meet it.

Sources: Gebremariam et al. (2012) – J Food Sci Technol, USDA FoodData Central.

Teff grain contains 13.3g protein per 100g (27% DV) according to USDA data. The protein content across 13 varieties ranges from 8.7% to 11.1% (mean 10.4%), though some analyses report higher values depending on growing conditions and extraction method.

What distinguishes teff protein is its amino acid balance. Jansen et al. (1962) reported that teff has an amino acid profile comparable to whole egg, except for slightly lower lysine and isoleucine. Teff’s lysine content (3.68 g/100g protein) is higher than in barley (3.46), wheat (2.08), and pearl millet (2.89).

The protein fraction composition is: glutelins (44.6%) > albumins (36.6%) > prolamins (11.8%) > globulins (6.7%). Albumins and glutelins — the dominant fractions — are the most digestible protein types, which contributes to teff’s relatively high protein digestibility compared to sorghum and maize.

All eight essential amino acids are present in teff grain, making it one of the more nutritionally complete single-grain protein sources among cereals.

Sources: Gebremariam et al. (2012) – Table 2 amino acid data, Baye (2014) – IFPRI ESSP.

This calculator uses a teff GI value of 35 (low GI range). This is derived from clinical measurement of teff injera, which showed a GI of approximately 36 when tested against glucose as the reference food.

A study published in the Journal of Nutrition and Metabolism (2019) measured the glycemic index of Ethiopian foods and found teff injera had a GI of 36, compared to corn injera at 97 and white wheat bread at 46.

The low GI is attributed to teff’s slowly digestible starchand high fiber content. Fermentation during injera preparation further increases resistant starch. A study on teff bread found that storage for 3–5 days decreased rapidly digestible starch by more than twofold while increasing slowly digestible and resistant starch (Shumoy et al., 2018).

Sources: Glycemic Index of Ethiopian Foods (2019), Nutritional Values of Teff – DMSO (2022).

Teff is increasingly used worldwide as an alternative to wheat and rice. Below is a per-100g raw comparison:

On a per-100g basis, teff provides 4× the fiber and calcium of wheat, over 2× the iron, and 7× the magnesium of white rice. Its GI of 35 is roughly half that of wheat bread (~70) or white rice (72).

Wheat and rice data: USDA FoodData Central. Teff data: USDA SR Legacy & Bultosa & Taylor (2004).

Injera — a fermented, spongy flatbread — is the most well-known teff preparation. The batter is fermented for 2–3 days, producing a tangy bread with a distinctive honeycomb-like texture. Studies show that injera made from pure teff flour has the best keeping quality (up to 48 hours without significant staling), outperforming sorghum-based injera.

Beyond Ethiopia, teff flour has found growing use in the global health food market:

• Gluten-free baking — teff flour with a falling number above 250 seconds produces baked goods with attractive texture and taste
• Porridge and cereals — cooked teff has a mildly nutty flavor with a hint of molasses sweetness
• Thickening agent — teff flour is used in soups, stews, gravies, and puddings
• Pasta and noodles — the fine flour blends well with other gluten-free flours for noodle production
• Brewing — in Ethiopia, teff is used to make traditional beverages like tella (opaque beer) and arake (distilled spirit)

The growing global interest in teff is driven by its unique combination of gluten-free status, whole-grain nutrition, and versatile application in both traditional and modern recipes.

Sources: Gebremariam et al. (2012) – comprehensive teff review, Springer Nature Communities – Teff: Ancient Grain with a Modern Mission.

One of teff’s most remarkable nutritional features is its manganese content: 9.24mg per 100g, which represents over 400% of the Daily Value. This is the highest manganese concentration among commonly consumed cereal grains.

Manganese is a trace mineral that functions as a cofactor for several enzymes involved in carbohydrate metabolism, amino acid metabolism, and antioxidant defense. The USDA Daily Value for manganese is 2.3mg, and a single 100g serving of raw teff provides more than four times this amount.

For context, wheat provides 0.95mg manganese per 100g, brown rice provides 0.36mg, and barnyard millet provides about 0.83mg. Teff’s manganese content is roughly 10× that of wheat and 25× that of white rice.

Source: USDA FoodData Central – SR Legacy.

Teff is commonly fermented before consumption (as in injera preparation). Fermentation significantly affects the nutritional profile:

• Amino acid changes: Spontaneous fermentation decreased threonine (30%), isoleucine (20%), and lysine (17%), while methionine increased by 90%. Fungal fermentation with Aspergillus oryzae increased nearly all amino acids by 10–36%, with methionine rising by 180% (Yigzaw et al., 2004).
• Starch digestibility: Fermentation increases resistant starch content. Storage of teff bread for 3–5 days decreased rapidly digestible starch by more than twofold, lowering the estimated glycemic index (Shumoy et al., 2018).
• Anti-nutritional factors: Fermentation can reduce phytic acid content, potentially improving mineral bioavailability (Baye, 2014).
• Phenolic compounds: Ferulic acid (285.9 μg/g) is the major phenolic in teff, along with vanillic, coumaric, and cinnamic acids (McDonough & Rooney, 2000).

For nutrition journaling purposes, note that fermented teff preparations (like injera) will have a different nutrient profile from unfermented preparations (like porridge or flatbread).

Sources: Gebremariam et al. (2012), Teff functional properties review – Cogent Food & Agriculture (2018).

For consistent food logging:

1. Select your preparation method (raw, boiled, porridge, flatbread, etc.).
2. Choose a standard serving size or enter custom grams.
3. Add accompaniments only if they are part of your actual plate.
4. Set the number of servings and review your macro and micronutrient totals.
5. Export results as CSV or JSON for your tracking app or personal records.

This workflow keeps your entries reproducible and makes it easy to compare meals over time. For injera-based meals, use the custom weight option and enter the actual gram weight of your portion, as injera thickness and diameter vary.

You can also explore other millet calculators: Pearl Millet, Finger Millet, Sorghum, Foxtail Millet, Barnyard Millet, Browntop Millet, and all dedicated millet tools.