Origin and identity
Amaranth — Rajgira, the honorary millet with exceptional nutrition
Amaranth (Amaranthus species, rajgira in Hindi, ramdana, cholai) is botanically not a grass at all — it is a flowering plant in the Amaranthaceae family, making it a pseudocereal rather than a true cereal grain. However, it is grouped with millets in Indian food classification because it shares their key characteristics: gluten-free, small-seeded, drought-tolerant, and high in nutrients. In India, amaranth seeds and leaves are both consumed. The seeds (rajgira) are used primarily as a fasting grain in Hindu traditions (it is permitted during Navratri when grains are restricted) and as a puffed snack grain. Nutritionally, amaranth stands apart from all the millets — it has the most complete amino acid profile of any grain and exceptional mineral content.
Cooking Science
Why is amaranth called a complete protein grain?
Most grains are deficient in lysine — an essential amino acid that the human body cannot synthesise. Wheat, rice, jowar, bajra, and ragi all have low lysine content, meaning their protein is nutritionally incomplete for humans without complementary food sources. Amaranth contains significantly more lysine per gram of protein than any other grain — enough that its amino acid profile is considered "complete" or close to complete for human nutrition. This means amaranth protein is more bioavailable and nutritionally useful per gram than protein from most other Indian grains. It does not need to be paired with complementary protein sources the way wheat and rice do for complete amino acid coverage.
Amaranth — Forms and Uses
How rajgira is used in Indian cooking
- Puffed amaranth (popped rajgira): dry heat causes amaranth grains to pop (similar to popcorn). Used in chikki (puffed amaranth with jaggery), as a topping, or mixed with milk. The most common urban preparation.
- Rajgira atta (amaranth flour): ground amaranth seeds. Used for fasting rotis and puris during Navratri. Cannot be rolled like wheat dough — needs water and hand-patting technique.
- Amaranth porridge: whole amaranth grains cooked in water or milk (similar to oatmeal). Thick, slightly gelatinous consistency from amaranth's starch.
- Amaranth leaves (cholai): completely different preparation from seeds — used as a green leafy vegetable in saag and stir-fries. Nutritionally different from the seeds.
Related articles
Amaranth (Rajgira/Ramdana) — Nutrition per 100g (whole grain, raw)
Source: ICMR-NIN Nutritive Value of Indian Foods, 2017
| Nutrient | Amaranth | vs Rice | vs Wheat (atta) |
|---|---|---|---|
| Energy | 374 kcal | 346 kcal | 341 kcal |
| Protein | 13.6 g | 6.8 g | 12.1 g — amaranth highest |
| Carbohydrates | 66.2 g | 78.2 g | 69.4 g |
| Dietary Fibre | 6.7 g | 0.2 g | 11.2 g |
| Fat | 7.1 g | 0.5 g | 1.7 g |
| Iron | 7.6 mg | 0.7 mg | 4.9 mg |
| Calcium | 159 mg | 10 mg | 48 mg — amaranth 3× more |
| Zinc | 3.3 mg | 1.0 mg | 2.7 mg |
| Lysine (amino acid) | Complete profile | Low | Low |
Amaranth is nutritionally exceptional across multiple dimensions: highest protein (13.6g) of all millets and grains compared here, highest calcium (159mg — 3× more than atta), high iron (7.6mg — more than atta), and the most complete amino acid profile (high lysine where other grains are deficient). It is genuinely the most nutritionally exceptional grain in this comparison — the 'superfood' label is more justified for amaranth than for most grains that receive that label.
Nutritional Context
Amaranth is genuinely exceptional — the 'superfood' label is rare but justified here
This Encyclopedia is cautious about superfood claims — most are overstated. Amaranth is a genuine exception. Its combination of highest protein among grains (13.6g), complete amino acid profile (including lysine), highest calcium (159mg), high iron (7.6mg), and gluten-free status is unmatched among common Indian grains. This doesn't mean everyone should immediately switch to amaranth — it is harder to find, more expensive, and requires adjusted cooking techniques. But for those specifically seeking the most nutritionally complete grain option, the data genuinely supports amaranth's exceptional status.