Is potato flour and tapioca complex carbs?

No, neither potato flour nor tapioca starch are considered complex carbohydrates.

Here's why:

* Complex carbohydrates are made up of long chains of sugar molecules, which take longer to break down and digest, providing a sustained release of energy. Examples include whole grains, legumes, and some vegetables.

* Potato flour and tapioca starch are primarily composed of simple carbohydrates. These are made up of short chains of sugar molecules, which are quickly broken down and digested, leading to a rapid rise in blood sugar levels.

Specifically:

* Potato flour is made from potatoes, which are primarily composed of starch. This starch is broken down into glucose (a simple sugar) during digestion.

* Tapioca starch is derived from the root of the cassava plant. It's also primarily made up of starch, which is broken down into glucose.

While potato flour and tapioca starch can be a part of a balanced diet, it's important to be aware of their simple carbohydrate nature and consume them in moderation.