Ancient Grains: Amaranth, Teff and Sorghum for Modern Nutrition

Amaranth is the only grain with a complete amino acid profile — it contains all nine essential amino acids in proportions that meet human requirements without supplementation. Its lysine content (5.1g per 100g dry weight) is particularly significant: lysine is the limiting amino acid in most cereal grains (wheat, rice, corn are all lysine-deficient), and its presence in amaranth makes it nutritionally superior to conventional grains for protein quality.

Protein content: 13–14g per 100g dry — comparable to quinoa and significantly higher than most grains (wheat averages 12–13g, but its protein quality is lower due to lysine deficiency). For the protein PDCAAS (Protein Digestibility-Corrected Amino Acid Score) — the gold standard for protein quality — amaranth scores 0.75–0.85, versus 0.40–0.60 for wheat and 0.57 for rice.

Mineral profile: amaranth provides 159mg of calcium per 100g dry (versus 28mg in wheat), 248mg of magnesium (versus 138mg in wheat), and 7.6mg of iron — all substantially higher than common cereal grains. It also contains squalene, a cholesterol-lowering triterpene more commonly associated with olive oil, at concentrations of 4–8% of amaranth oil weight.

Teff (Eragrostis tef) is the world's smallest grain — a single grain of wheat weighs as much as 150 grains of teff. Originating in Ethiopia, where it forms the foundation of injera (the fermented flatbread served with most Ethiopian dishes), teff has gained global recognition for its exceptional calcium content — 180mg per 100g dry, making it one of the highest calcium grains known.

Iron content is equally impressive: 7.6mg per 100g, much of which is in bioavailable form. Traditional injera fermentation increases iron bioavailability by reducing phytic acid content — a lesson applicable to any teff preparation. Soaking or fermenting teff for 12–24 hours before cooking improves mineral absorption significantly.

Teff's starch composition is particularly interesting from a glycaemic perspective. Its starch is 40% resistant starch — a form that resists digestion in the small intestine and ferments in the colon, acting like prebiotic fibre. This gives teff a low glycaemic index (approximately 57) and makes it an excellent grain for blood sugar management, despite its sweetish, malt-like flavour profile that suggests otherwise.

Sorghum (Sorghum bicolor) is the world's fifth most important cereal crop and has been a staple in Africa, India, and parts of the Americas for over 5,000 years. Nutritionally, sorghum's most distinctive feature is its polyphenol content — particularly 3-deoxyanthocyanidins (in pigmented varieties), tannins, and phenolic acids that give sorghum one of the highest antioxidant capacities of any grain.

The ORAC (Oxygen Radical Absorbance Capacity) value of sorghum bran (240,000 µmol TE/100g) is extraordinarily high — substantially higher than blueberries (6,552 µmol TE/100g). While ORAC values are imperfect predictors of in-vivo antioxidant activity, the polyphenol concentration of sorghum is associated with anti-inflammatory effects in cell and animal studies.

Sorghum's fibre content (6.3g per 100g cooked) is higher than wheat, rice, and corn. Unlike most grains, sorghum's fibre is relatively resistant to cooking-induced breakdown, remaining intact through digestion and feeding the colon microbiome effectively. Its protein content (8–9g per 100g dry) and iron content (4.4mg per 100g) are also meaningful contributions to a plant-forward diet.

All three grains — amaranth, teff, and sorghum — are naturally gluten-free and safe for people with coeliac disease or non-coeliac gluten sensitivity when sourced from certified gluten-free facilities. They offer nutritionally superior alternatives to many commercial gluten-free products, which are typically made from refined rice flour, potato starch, or tapioca — ingredients that are nutritionally poor substitutes for whole grains.

For people newly diagnosed with coeliac disease who need to rebuild their nutritional baseline after years of damaged intestinal absorption, ancient grains offer a high-density solution. The calcium in teff, the iron in amaranth, and the fibre in sorghum address common nutritional deficiencies seen in untreated and newly treated coeliac patients.

Cross-contamination is a genuine concern: most commercial facilities that handle conventional grains also handle ancient grains on shared equipment. Always look for certified gluten-free labelling if you have coeliac disease, not just 'naturally gluten-free' marketing language.

**Amaranth:** Combine 1 cup amaranth with 2.5 cups water. Bring to a boil, reduce heat, simmer 20 minutes until water is absorbed. Result: a slightly sticky, porridge-like texture. Best as a porridge base, in soups (add raw and cook in the pot), or mixed with nuts and dried fruit for a high-protein breakfast bowl. Popped amaranth (heat in a dry pan until it pops) works as a cereal topping or granola ingredient.

**Teff:** Combine 1 cup teff with 3 cups water. Bring to a boil, whisk, simmer 15–20 minutes, stirring frequently. Produces a thick, polenta-like porridge. Use as a base for toppings (roasted vegetables, fried eggs, legume stews), or allow to cool, slice, and pan-fry like polenta cakes. Teff flour makes excellent banana bread, pancakes, and flatbreads.

**Sorghum:** Combine 1 cup whole sorghum with 3 cups water, bring to a boil, simmer 50–55 minutes until tender but chewy. Drain any excess water. Best used as a rice substitute in grain bowls, warm salads, stuffed peppers, or tossed with roasted vegetables and tahini. Sorghum flour produces excellent flatbreads and can replace up to 30% of all-purpose flour in most baking.

Ancient grains, like all whole grains and legumes, contain phytic acid (phytate) — an anti-nutrient that binds to minerals (iron, zinc, calcium, magnesium) and reduces their absorption. This is a genuine nutritional consideration, particularly for people relying on plant sources for iron and calcium, and is especially relevant for those following an anti-inflammatory whole-food diet.

The good news: phytic acid content is substantially reduced by food preparation techniques that were traditional long before phytic acid was understood scientifically:

• **Soaking** (12–24 hours in water): reduces phytic acid by 40–60% • **Sprouting** (germination for 24–72 hours): reduces phytic acid by 50–75% • **Fermentation** (as in Ethiopian injera): reduces phytic acid by 50–85%, most effective method • **Cooking alone**: reduces phytic acid by 20–30%

For everyday use, soaking overnight before cooking is the most practical intervention. Combine soaked ancient grains with vitamin C-rich foods (tomatoes, bell peppers, citrus) to further enhance iron absorption — vitamin C converts ferric iron to ferrous iron, which is absorbed 2–3 times more effectively.