While you can survive with a measure of health as an herbivore (vegetarian or vegan) or as a carnivore (keto, paleo, caveman…), and while either of these diets may temporarily seem optimal because of weight loss, improved energy, or improved blood panels, neither provide what your body requires to truly thrive throughout your life. Overbalancing proteins creates toxicity in the body, not today but over time. Overbalancing carbs quickly creates inflammation.
Achieving a naturally healthy, beautiful you requires a balance of unprocessed proteins and unprocessed carbs in your body. If you increase proteins you must increase carbs by the same ratio. If you decrease carbs you must decrease proteins by the same ratio.