Scott Keatley, R.D., co-owner of Keatley Medical Nutrition Therapy, commented on Carnie Wilson's dietary changes that led to her 40-pound weight loss. He expressed skepticism about the sustainability of eliminating foods like gluten, sugar, and butter without a specific medical reason. Keatley emphasized that such dietary restrictions are not necessary for everyone and should be approached with caution unless there's a known intolerance or medical need. He also noted the importance of moderation and cautioned against the potential negative mental health implications of overly restrictive eating, which can lead to food anxiety and stress.