I haven't used a naturopath for weight loss however I did complete part of a naturopathy degree before my 4th bub arrived. Nutrition and food as medicine features heavily in the course structure, and all with underpining units of chemistry and biology, and physiology. So I wouldn't hesitate to see one If I were you I would call around local naturopaths and find one with a special interest in weight management

Let us know how you go!