Amaranth is a versatile grain-like seed used for food, animal feed, skincare products, and increasingly as a climate-resilient crop in drought-prone regions. It belongs to a genus of about 75 species, with the majority native to the Americas. Technically a pseudocereal (it comes from a broadleaf plant, not a grass like wheat or rice), amaranth has been cultivated for thousands of years and remains a dietary staple in parts of Mexico, India, and Africa.
A Nutrient-Dense Pseudocereal
Amaranth packs a surprising amount of nutrition into tiny seeds. Per cup of cooked grain, it delivers roughly 9 grams of protein, 5 grams of fiber, and meaningful amounts of iron, magnesium, and phosphorus. Its protein is about 90% digestible, which is unusually high for a plant source, and its protein quality score is comparable to soybeans and higher than most other grains or pseudocereals like quinoa and buckwheat.
The protein in amaranth is particularly notable because it’s rich in lysine, an amino acid that most grains lack. This makes amaranth a useful complement to rice, corn, or wheat in plant-based diets where getting a complete amino acid profile can be tricky.
Naturally Gluten-Free
Amaranth contains no gluten, which makes it a valuable flour and grain alternative for people with celiac disease. Lab analysis of multiple amaranth varieties has confirmed that the gluten-like protein content consistently falls below 20 parts per million, the international threshold for a “gluten-free” label. The molecular structure of amaranth proteins also appears safe for celiac patients, though some varieties have slightly higher levels of proteins that cross-react with gliadin antibodies. If you’re buying amaranth flour, look for products processed in dedicated gluten-free facilities to avoid cross-contamination from wheat or barley.
How People Cook and Eat It
Amaranth shows up in kitchens in several forms: whole grain, flour, popped seeds, and flakes. Each lends itself to different dishes.
As a cooked grain, amaranth simmers in water at roughly a 1:3 seed-to-water ratio for about 20 minutes. The result is porridge-like, thicker and stickier than quinoa, which makes it better suited for breakfast bowls, polenta-style sides, or as a thickener in soups and stews rather than a fluffy pilaf.
Popping amaranth is one of the most popular preparation methods worldwide. You heat a dry, heavy-bottomed pot over medium heat, then add just a teaspoon of seeds at a time. They pop within seconds into tiny, crunchy puffs resembling miniature popcorn. The key is working in very small batches and shaking the pot constantly, since the seeds burn quickly. The first batch or two often scorches before the pot reaches the right temperature. Popped amaranth can be eaten as a snack, stirred into yogurt, or pressed into bars.
In Mexico, those popped seeds are the base of alegrías, a beloved street treat made by binding puffed amaranth with honey or sugar syrup into crunchy bars. The name means “joy” in Spanish, and they’ve been a fixture at markets, fairs, and church candy stalls for generations. Historically, Indigenous peoples shaped amaranth mixed with maguey honey into figurines of gods and animals for ceremonial occasions, including celebrations that parallel today’s Day of the Dead. In India, amaranth goes by rajgira and is ground into flour for flatbreads, especially during religious fasting periods when conventional grains are avoided. Across southern Africa, both the seeds and leaves are eaten as a leafy green vegetable, similar to spinach.
Potential Heart Health Benefits
Amaranth contains a bioactive peptide called lunasin, originally discovered in soybeans and later identified in amaranth, wheat, rye, and barley. In animal studies, lunasin has been shown to lower total cholesterol and LDL (“bad”) cholesterol in a dose-dependent manner. It works through two simultaneous mechanisms: it reduces the liver’s production of a protein that normally degrades cholesterol receptors, and it boosts the liver’s ability to pull LDL cholesterol out of the bloodstream.
These results come from mice fed high-fat diets and from lab studies on liver cells, so the direct effect of eating amaranth on human cholesterol levels isn’t firmly established yet. Still, the combination of high fiber, plant protein, and these bioactive peptides positions amaranth as a heart-friendly grain choice.
Anti-Inflammatory Compounds
When amaranth seeds are germinated (sprouted) and then digested, they release peptides with measurable anti-inflammatory and antioxidant activity. In lab studies using immune cells exposed to bacterial toxins, peptide fractions from germinated amaranth significantly reduced inflammatory responses. The most active peptides were medium- and larger-sized fragments released during simulated digestion, suggesting that sprouting amaranth before eating it may increase its anti-inflammatory potential.
Skincare and Cosmetic Uses
Amaranth oil has carved out a niche in the cosmetics industry thanks to its unusually high squalene content. Squalene is a natural compound that your skin already produces as part of its moisture barrier, and it declines with age. Amaranth seed oil contains 5% to 8% squalene in its total fat fraction, which is remarkably high for a plant source. Converted into its more stable form (squalane), it’s used as a lightweight moisturizer in facial creams, makeup, shampoos, and conditioners. It absorbs quickly without feeling greasy, making it popular in formulations for dry or aging skin.
A Climate-Resilient Crop
One of amaranth’s most important modern uses is agricultural. The plant grows rapidly across a wide range of environments, from tropical lowlands to semi-arid regions. It tolerates drought, heat stress, alkaline soils with pH as high as 8.5, and acidic soils. These traits make it especially valuable in southern Africa and other regions where climate variability threatens conventional cereal crops like corn and wheat.
Amaranth isn’t fully domesticated in the way wheat or rice are. Its seeds are small and prone to shattering (falling off the plant before harvest), and the plant is sensitive to day length, which limits where and when it flowers. Despite these limitations, agricultural researchers are actively developing amaranth varieties better suited to large-scale farming, viewing it as a key crop for improving food security in drought-prone areas.
Oxalate Content Worth Noting
Amaranth grain is considered a high-oxalate food, averaging about 229 mg of total oxalates per 100 grams, with individual varieties ranging from 178 to 278 mg. If you’re prone to calcium oxalate kidney stones, this is worth knowing. However, roughly 80% of the oxalate in amaranth is in an insoluble form, which the body absorbs poorly. The grain’s high calcium and magnesium content may further reduce how much oxalate actually enters your bloodstream, though this hasn’t been confirmed in human absorption studies. Amaranth leaves, used as a cooked green, also contain oxalates and are typically prepared by boiling, which leaches some oxalate into the cooking water.