Rolled oats are a type of oats made from whole oat groats that have been steamed and then flattened by rolling into flakes to remove the moisture. Technically they’re not raw.
Raw oats contain phytic acid, which can bind to minerals like calcium, magnesium, iron, and zinc making them unavailable for absorption.
Soaking or cooking oats reduces phytic acid levels significantly. A handful of raw oats are safe to eat but it's always best to soak or cook oats if you want to benefit from their high mineral content.