Quinoa: a better grain, not a protein source

Quinoa arrived with the loudest marketing of any grain in the last 20 years, and about half of it holds up.

The half that holds up is real and worth having. The half that does not has convinced a lot of people they are eating a protein.

What is actually true

Quinoa is a complete protein, which is rare in a plant food and genuinely unusual in something used as a grain.

Complete means it carries all nine essential amino acids in meaningful quantities. Most cereals do not: wheat, rice, corn and oats are all limited by lysine, which is why the traditional advice was to combine grains with legumes at the same meal.

Quinoa carries substantially more lysine than any of those, and that is the specific reason it qualifies.

It is also, strictly, not a grain. It is the seed of a plant more closely related to spinach and beet than to wheat, which is why it is naturally gluten free and why it behaves differently in cooking.

And here is where it stops

Complete protein and enough protein are two different claims, and the marketing has spent a decade blurring them. Quinoa is a better grain than rice on this measure and it is still a carbohydrate.

If your meal is quinoa and vegetables, you have not eaten a protein meal.

The numbers against rice

Quinoa also carries considerably more iron, magnesium and zinc. Against brown rice the gap narrows on fibre and glycaemic index and remains on protein quality and minerals.

On every one of those measures quinoa wins in ordinary camp. Which is exactly why the next section matters.

Why it is wrong in the final days

Two reasons, and they compound.

Fibre. Around 5 grams per cooked cup, which is a lot for a carbohydrate base, roughly what a substantial serving of vegetables provides.

In the last 3 days fibre is gut content and gut content is weighed with you.

Saponins. Quinoa seeds carry a natural bitter coating that acts as a pest deterrent on the plant, and saponins can irritate the digestive tract in some people.

Rinsing removes most of it, and most does not mean all.

So the food that beats rice on every nutritional measure is the food to remove in the week when nutritional measures stop being the question.

Same reversal that governs brown rice and wholemeal bread, and here it is sharper, because quinoa carries more fibre than either.

Rinsing, which is not optional

Rinse dry quinoa in a fine mesh strainer under cold running water for 30 to 60 seconds, until the water runs clear.

This removes the saponins, which are what make unrinsed quinoa taste bitter and soapy. A great many people who tried quinoa once and disliked it were eating unrinsed quinoa.

Packages labelled pre-rinsed have usually had most of it removed, and an additional rinse costs nothing. Rinsing does not change the amino acid profile, which has been confirmed directly rather than assumed.

Soaking for a few hours before cooking breaks down some of the phytic acid, improving mineral availability. Worth doing if you eat it frequently, not worth worrying about otherwise.

What complete protein actually means in practice

The complete protein idea carries more weight in conversation than it does in a diet, and it needs deflating carefully rather than dismissing.

The traditional advice was to combine complementary plant proteins at the same meal: beans with rice, nuts with grains. That specific requirement has been relaxed considerably. The body maintains a pool of amino acids, and combining across a day rather than within a single meal is sufficient for practical purposes.

Which reduces the advantage quinoa is sold on. Its completeness matters most to somebody eating a narrow plant-based diet with few protein sources. It matters very little to a fighter eating chicken, eggs, fish and dairy across the week, because his amino acid profile was never the problem.

The people for whom it genuinely helps are the ones described under plant-based fighters, where protein quality and volume are both live constraints. There, quinoa earns its reputation.

For everybody else it is a good grain, and the completeness is a footnote rather than a reason.

Against the other grains

The pasta row is the surprise. Al dente durum pasta sits in the low forties on glycaemic index against quinoa at 53, costs considerably less, and is easier to eat in quantity on a hard training day.

No grain wins across the board, and the reason to rotate them is that variety solves the palatability problem that ends camps. Choosing the optimal grain is a smaller decision than most people make it.

Cost, and whether it is worth it

Quinoa costs considerably more than rice or pasta, usually several times more per kilogram.

For a fighter managing a food budget across an 8-week camp that is a real consideration, so be honest about what the money buys: better protein quality, more micronutrients, more fibre and a lower glycaemic index, on a food that provides a fraction of your daily protein regardless.

If the budget is tight, rice with an adequate protein source beats quinoa with an inadequate one, every time. The grain is not where the protein problem gets solved.

If the budget is not tight, quinoa is a good rotation food and there is no reason to avoid it.

The gluten question

Quinoa is naturally gluten free, which is a genuine advantage for anybody with coeliac disease and irrelevant to everybody else.

Cross-contamination during processing is possible, so certified gluten-free quinoa is the safer purchase for a coeliac athlete, in the same way described for oats.

And quinoa is one of the better gluten-free carbohydrate options nutritionally, considerably better than the refined rice and corn starches that make up most gluten-free pasta and bread.

Somebody eating gluten free out of necessity is better served by quinoa than by a shelf of processed substitutes.

For a fighter who removed gluten on suspicion rather than diagnosis, the relevant page is the one on testing it properly.

Varieties, cooking and storage

White, red and black quinoa have broadly similar nutritional profiles and differ mainly in texture and cooking time. White is softest and fastest.

Red and black hold their shape better, which makes them better in a salad and worse as a soft base.

The standard ratio is roughly two parts water to one part quinoa, simmered around 15 minutes until the germ separates and appears as a small visible spiral.

Undercooked quinoa is unpleasant in a specific way: crunchy in the centre rather than firm, which is not the al dente quality that improves pasta.

Cooked quinoa keeps 3 to 4 days refrigerated, the same window as rice, pasta and chicken. It freezes better than rice does, in portions, which makes it a reasonable food to prepare ahead. Dry quinoa carries more oil than most grains and can eventually go rancid, so a cool cupboard rather than a warm one.

In an away camp

Quinoa travels poorly compared with the alternatives on this site.

Less widely available than rice or pasta, particularly outside Western countries and cities. It requires rinsing, which requires a fine strainer you will not have.

And it takes longer to cook than most hotel or apartment situations allow for.

None of that matters at home. All of it matters in a foreign kitchen in the week before a fight, and the practical answer is that quinoa is a camp food in your own kitchen rather than a travel food.

Pre-cooked pouches solve the problem at a considerable price premium. Worth knowing about for a specific situation, not worth building a routine around.

What to actually do with it

Quinoa fails in most kitchens for a reason that has nothing to do with nutrition: people cook it like rice, serve it like rice, and find it worse than rice.

It is not a rice substitute. The texture is different, the flavour is nuttier, and it absorbs dressing in a way rice does not. Used as a direct swap it disappoints.

Used on its own terms it works.

The strongest use is cold, in a bowl or salad, where the texture is an advantage and the dressing gets absorbed rather than sitting on top. That also happens to be the version that travels in a container, which matters for anybody eating between a shift and a session.

Hot, it works better mixed into something than served beside it: stirred through a stew, folded into a mince dish, or used as the base of a bowl with a sauce rather than as a dry mound on the side.

Cooking it in stock rather than water costs nothing and makes a considerable difference, in the same way it does for rice. Plain water is where most of the disappointment comes from.

Portions, and what a serving looks like

Quinoa roughly triples in weight when cooked, similar to rice, which means a portion measured dry looks like very little and fills a bowl once done.

Weigh it dry, as with every other grain on this site, and for the same reason: cooked weight depends on how much liquid went in and how long it sat.

Note the protein column against the carbohydrate column. Even a large portion, 100 grams dry, delivers 13 grams of protein alongside 64 of carbohydrate. That ratio is what a carbohydrate looks like, not what a protein looks like, and it is the same point as the section at the top of this page seen from another angle.

Where it sits by phase

Complete is not the same as enough

• Complete protein and enough protein are different claims. Quinoa is the first and not the second.
• Eight grams per cooked cup. Build the meal around a real protein and let the quinoa be the carbohydrate.
• Rinse it. Thirty seconds, and it is the difference between liking it and not.
• Take it out at the start of the low-residue phase, earlier than you would take out rice, because it carries more fibre.
• And if the money is tight, rice with chicken beats quinoa without it.