Couscous and Quinoa: Which is Best for Weight Loss and Health?
We have all stood in the supermarket aisle staring at the grains section. You want to make a healthy choice for dinner. You pick up a packet of couscous. Then you pick up a packet of quinoa. You look at the prices. You look at the back of the packets. And if you are anything like me, you probably put them both back and grab the pasta because it is easier!
But mixing up your side dishes is a brilliant way to keep your meals interesting. Boredom is the biggest enemy when you are trying to lose weight or just eat a bit better. Both couscous and quinoa are popular choices for healthy eating, but they are actually quite different.
One is a seed. One is actually pasta in disguise. One is gluten-free. One definitely isn’t.
If you are following a plan like Slimming World or just trying to get more nutrients into your family, it helps to know what you are actually eating. Here I want to share the difference between couscous and quinoa and when you should choose each.
What are couscous and quinoa?
What exactly is Couscous?
A lot of people think couscous is a grain, like rice or barley. It certainly looks like one. But here is the surprise: couscous is actually a type of pasta.
It is made from semolina flour, which comes from durum wheat, mixed with water. These little balls are steamed and dried. Because it is made from wheat, it has a lot in common with your standard spaghetti, just in tiny little bead form.
It is a staple food in North African cooking, especially in places like Morocco. The best thing about it for busy cooks is the speed. Because the pieces are so small, they cook in minutes. In fact, most of the time you don’t even need to cook it on the hob. You just soak it in hot water.
You can find out more about the basics of this ingredient in my guide on how to use couscous.
What exactly is Quinoa?
Quinoa (pronounced keen-wah) often gets lumped in with grains, but it is technically a seed. It comes from a flowering plant that is related to spinach and beetroot. It has been grown in South America for thousands of years.
People often call it a “superfood” because it is packed with nutrients. Unlike most plant foods, it is a “complete protein.” This means it contains all nine essential amino acids your body needs. Most grains are missing one or two, but quinoa has the full set.
It has a slightly nuttier flavour than couscous and a texture that has a bit of a “pop” when you bite into it.
Couscous and Quinoa: The Nutrition
When you are trying to be healthy, you want to know what you are putting in your body and the nutrition in each. According to data from Healthline, here is a quick look at what you get in a serving (about 100g cooked of couscous and quinoa):
Calories
Couscous and quinoa are actually very similar in calories.
- Couscous: Approximately 176 calories per cup.
- Quinoa: Approximately 222 calories per cup.
Quinoa is slightly higher in calories, but don’t let that put you off. The calories in quinoa come with a lot more nutrients.
Protein
This is where quinoa really shines.
- Couscous: About 6 grams of protein.
- Quinoa: About 8 grams of protein.
Because quinoa is a complete protein, it is a fantastic choice for vegetarians and vegans who need to make sure they are getting enough amino acids.
Fibre
Fibre is so important for keeping us full and keeping our digestion working properly.
- Couscous: About 2 grams of fibre.
- Quinoa: About 5 grams of fibre.
Quinoa has more than double the fibre of couscous. This means you might feel fuller for longer after eating quinoa, which stops you from reaching for the biscuit tin an hour later.
Gluten
This is the big difference between couscous and quinoa for many people.
- Couscous: Made from wheat, so it contains gluten. It is not suitable for anyone with coeliac disease or gluten intolerance.
- Quinoa: Naturally gluten-free.
Which is better for blood sugar?
If you are watching your blood sugar or you find that you get energy crashes after eating carbs, you need to look at the Glycaemic Index (GI). This measures how quickly food raises your blood sugar.
According to Harvard Health, quinoa has a lower GI score (around 53) compared to couscous (around 65).
This means quinoa gives you a slower, steadier release of energy. Couscous is more likely to give you a quick spike followed by a drop, similar to white pasta or white rice.
Enjoying couscous and quinoa on Slimming World
If you are following Slimming World, you will be happy to know that both plain dried couscous and plain dried quinoa are usually classed as Free Food.
This means you don’t have to weigh or measure couscous and quinoa, and you can eat them until you are satisfied.
The Couscous “Tweak”
You have to be careful with couscous, though. It is only free food when you prepare it with water or stock and eat it as a meal accompaniment.
Some people try to use couscous as a substitute for flour to coat chicken or fish for frying. In Slimming World terms, this is often called a “tweak.” When you use a Free Food in a way it wasn’t intended (like grinding it down or using it as a coating), it usually counts as Swips. Always check your app or book to be sure.
Speed Foods
Remember that while these grains are free, they are not “Speed Foods” (like most vegetables). To get the best weight loss results, you should still aim to fill a third of your plate with vegetables.
A great way to do this is to mix the vegetables straight into the grain. My roasted vegetable couscous is a perfect example of how to bulk out your meal well.
How to make Couscous healthily
Couscous is one of the easiest things in the world to make. You don’t even need a saucepan.
- Measure: Put your dry couscous in a bowl.
- Boil: Boil the kettle.
- Pour: Pour boiling water (or hot stock) over the couscous. Usually, you want about the same amount of water as couscous (1:1 ratio), but check the packet.
- Cover: Put a plate or cling film over the bowl to trap the steam.
- Wait: Leave it for 5 to 10 minutes.
- Fluff: Use a fork to separate the grains.
Health Tip: Avoid adding big knobs of butter. Instead, use a stock cube in the water for flavour without the fat. You can also squeeze in fresh lemon juice and chopped herbs like coriander or parsley.
If you want a recipe that feels like a treat but is full of goodness, try this mango couscous recipe. It is sweet, savoury, and fresh.
How to make Quinoa healthily
Quinoa takes a little bit more effort than couscous, but it is worth it.
Important Step: You must rinse quinoa before you cook it! It has a natural coating called saponin which can taste soapy or bitter if you don’t wash it off. Put the dry seeds in a sieve and run cold water over them for a minute.
- Ratio: Use 1 part quinoa to 2 parts water (or stock).
- Boil: Put the rinsed quinoa and liquid in a saucepan and bring to a boil.
- Simmer: Turn the heat down low, put a lid on, and let it simmer for about 15 minutes.
- Rest: Take it off the heat and let it sit with the lid on for another 5 minutes. This stops it from being soggy.
- Fluff: Fluff with a fork. You should see little white “tails” detach from the seeds—that means it is done.
Quinoa isn’t just for savoury dinners. It makes a brilliant alternative to porridge or cereal. Check out this veggie quinoa breakfast bowl for a different way to start your day.
Couscous and Quinoa in Summary: Which should you choose?
So, which is better between couscous and quinoa?
Choose Quinoa if:
- You want the most nutritious option.
- You are vegetarian or vegan and want a complete protein.
- You need to avoid gluten.
- You want to stay fuller for longer (high fibre).
- You are watching your blood sugar.
Choose Couscous if:
- You are in a rush (it is much faster to make).
- You prefer a softer, fluffier texture.
- You want a budget-friendly option (couscous is often cheaper than quinoa).
- You want a neutral base that soaks up the sauce from a stew or tagine.
Personally, I keep both couscous and quinoa in the cupboard. Couscous is my go-to for a panic dinner on a Tuesday night when I have 10 minutes to get food on the table. Quinoa is for when I’m a bit more organised and want a nutrient boost.
Frequently Asked Questions for Couscous and Quinoa
Can I freeze cooked couscous and quinoa?
Yes, you can freeze both! Let them cool down completely first. Then put them in a freezer-safe bag or container. They will keep for about 3 months. When you want to eat them, defrost them in the fridge overnight and make sure you heat them until they are piping hot all the way through.
Is pearl couscous the same as normal couscous?
Pearl couscous (sometimes called Israeli couscous) is made from the same stuff (semolina dough), but the balls are much bigger. Because they are bigger, they don’t cook just by soaking. You usually have to boil pearl couscous on the hob like pasta for about 10 minutes. The nutrition is very similar to standard couscous.
Can I eat them cold?
Absolutely. Both couscous and quinoa are brilliant in salads. In fact, they are often better cold because they have had time to absorb any dressing you put on them. A cold vegetable couscous is perfect for a packed lunch box.
Which is cheaper?
Generally, couscous is cheaper than quinoa. Quinoa is often imported from South America, whereas wheat for couscous is grown more widely. If you are on a tight budget, couscous is the more wallet-friendly choice.
Does washing couscous help?
No, do not wash couscous! If you put couscous in a sieve and run water over it, you will just end up with a mushy mess. It is not like rice or quinoa. It is dried pasta, so it needs to stay dry until it hits the hot water.
Are couscous and quinoa keto-friendly?
Not really. Both couscous and quinoa are high in carbohydrates. If you are following a strict ketogenic (keto) diet, neither of these will likely fit your macros. However, for a general balanced diet or plans like Slimming World, they are perfectly fine.
My Thoughts
At the end of the day, both couscous and quinoa are healthier alternatives to greasy chips or buttery mash. They are versatile, easy to cook, and can be bulked out with vegetables.
If you can swap white rice for quinoa a couple of times a week, you will benefit from the extra fibre and vitamins. But if you just love the fluffy texture of couscous with a spicy Moroccan tagine, enjoy it!
Healthy eating doesn’t have to be complicated. Whether you pick the pasta-in-disguise or the super-seed, the most important thing is that you enjoy your meal. Couscous and quinoa are both great additions to many meals and plain enough to flavour however you choose.
Do you enjoy couscous and quinoa? Which do you prefer? Let me know how you use them in the comments below.
