Carbs are vital for health, especially hormones and metabolism. Here is a very simplistic but helpful diagram. For your body to make the necessary hormones, cholesterol needs to be converted with the help of the thyroid. Low carb diets will slow down thyroid and hinder your body’s ability to produce these hormones.
Also, the primary source of energy for the brain is glucose.
That does not mean go buy bread from the grocery store. That is poison. Prioritize honey, fruit, and milk. 