Different carbohydrate-rich foods affect how quickly blood sugar rises after a meal and may influence how soon hunger returns. Refined grains such as white bread are generally digested quickly, while whole or minimally processed grains may produce a steadier post-meal blood sugar response.1 A recent study explored whether cooked quinoa could offer advantages for blood sugar control and appetite.
The Study
Published in Foods in July 2026, this randomized crossover preliminary study included 18 healthy women ages 18 to 30 at Kuwait University. Each participant completed four morning test sessions after an overnight fast, allowing every woman to serve as her own comparison.
The meals contained cooked quinoa or white bread, matched to provide 25 or 35 grams of available carbohydrate. The quinoa portions began as 36 or 50 grams of dry seeds. Both foods were served with equal amounts of butter and water. Researchers measured blood glucose and asked participants about hunger, fullness, desire to eat, and how much they felt they could consume over two hours.
The Results
Cooked quinoa produced a significantly lower overall blood sugar response than white bread at both carbohydrate levels. Glucose returned to baseline after quinoa, while it remained elevated throughout the two-hour period after bread, especially with the larger serving.
Quinoa suppressed appetite more effectively than white bread, even though the meals provided matching amounts of available carbohydrate. The difference was most noticeable near the two-hour mark, when participants who ate quinoa reported less desire to eat and greater fullness.
In addition, quinoa and bread received similar ratings for taste, aroma, texture, and digestive comfort.
What Does this Mean?
Replacing white bread or another refined carbohydrate with cooked quinoa may support steadier blood sugar levels after eating and help a meal remain satisfying longer. Quinoa's fiber, protein, grain structure, and more slowly digested starch may contribute to these benefits.
While these findings are encouraging, larger studies in more diverse groups are needed to determine whether these short-term effects translate into longer-term benefits for people with diabetes or those managing their weight.
Other fiber-rich plant foods with slowly digested carbohydrates, including oats, barley, and buckwheat, may offer similar benefits for blood sugar and fullness.
