Evidence-based nutrition, in plain English — every entry sourced from clinical research.

Oats and quinoa both anchor a huge range of breakfast bowls and grain-based meals, and while they’re used in similar ways, they come from entirely different plant families with genuinely different nutritional strengths.

Oats vs Quinoa — nutrition per 100 g
NutrientOatsQuinoa
Calories379 kcal385 kcal
Protein13.15 g ✓11.9 g
Total Carbohydrate67.7 g69.5 g
Dietary Fiber10.1 g ✓6.3 g
Total Sugars0.99 g0.87 g ✓
Total Fat6.52 g6.6 g
Saturated Fat1.11 g0.23 g ✓
Sodium6 mg ✓6.32 mg

Notable compounds in each

When to choose each

Reach for oats when fibre is the priority — they carry substantially more, including beta-glucan, a soluble fibre specifically linked to cholesterol benefits in the research. Reach for quinoa as a complete plant protein (it supplies all nine essential amino acids, unusual for a plant food) and for its notable iron and magnesium content. Both are genuinely excellent whole-food staples; the choice mostly comes down to what the rest of the meal needs.

Common questions

Is quinoa a grain? Botanically no — it’s a seed, though it’s cooked and eaten like a grain and is usually grouped with them nutritionally and in recipes.

Which is better for cholesterol? Oats have the stronger, more specific evidence here, largely thanks to beta-glucan — a soluble fibre shown in multiple trials to help lower LDL cholesterol when eaten regularly.

Nutrition values are USDA FoodData Central approximations — see our editorial approach for how we source and verify data.