Overnight oats are typically made with rolled oats or old-fashioned oats, not quick oats that absorb water quickly. These oats are steamed, rolled, and flattened into flakes. The flakes dry out ...
or steel-cut oats (oat groats cut into smaller pieces), both of which take longer to digest and therefore have a lower glycemic index compared to rolled, old-fashioned (steamed, rolled and ...