The Truth About Seed Oils: What the Evidence Actually Says

Seed oils have become a lightning rod in nutrition debates. The evidence is more measured than the headlines.

What they are

Seed oils like canola, soybean, and sunflower are common cooking oils high in unsaturated fats.

What research shows

For most people, replacing saturated fats with unsaturated fats is associated with heart benefits. Overall diet quality matters more than any single oil.

The bigger picture

Ultra-processed foods — which often contain these oils — are the more meaningful thing to limit, rather than the oil itself.