Complex carbohydrates refer to carbohydrates made up of long chains of sugars that require a long time to digest.
On a keto diet, consumption of complex carbohydrates should be minimized as they can raise blood glucose levels and disrupt the process of ketosis.
Instead, it is recommended to consume easily digestible carbohydrates such as non-starchy vegetables and some types of berries.
Avoid products containing refined complex carbohydrates such as white bread, pasta, potatoes, and sweets as they can interrupt the fat-burning process characteristic of the keto diet.