Carbohydrates are crucial for hormone production.
They stimulate your thyroid and create a better fat-burning, hormonal balance in your body. For women, this is huge because our hormones are particularly sensitive.
Carbs are also fuel!
Not just to function highly but to get the most in your workouts.
No energy = half ass workout
Half ass workout = no stimulus
No stimulus = no change
(Plus, what is the point if you can never have a piece of cake, baked potato, or bowl of spaghetti ever again?)