Chia seeds and a spoon.

Chia Seeds vs. Flax Seeds: Which Superfood Is Healthier

April 06, 2025 | Source: Real Simple | by Kirsten Nunez

Despite their tiny size, seeds pack a nutritional punch. This is especially true of chia seeds and flax seeds—two popular varieties known for their nutty flavor and plant-based protein. The ingredients can also be used in similar ways, but they’re not exactly identical. Ahead, experts explain the nutritional and culinary differences between chia seeds vs. flax seeds, plus which superfood is healthier for you.

What Are Chia Seeds?

Chia seeds are the seeds of the chia plant, which is native to Mexico and Guatemala1. The seeds are small, flat, oval-shaped, and come in many colors—including red, white, and black. In the United States, black chia seeds are the most common variety.