Key points are not available for this paper at this time.
changes on the basis of nutritional tests provided by commercial companies which advertise laboratory services in the pages of health magazines.Nutritional consultations may be given by a wide range of practitioners with varying levels of training and experience, from complementary practitioners who mainly practise other disciplines through trained nutritional therapists and naturopaths to nurses and doctors who have undertaken further training in nutrition.Nutritional medicine can be a relatively expensive form of complementary medicine.Diagnostic tests can cost from £15 to over £100 per test, nutritional supplements may cost £10-£50 a month, and dietary changes involving organic produce or wholefoods may also have substantial cost implications.
Vickers et al. (Sat,) studied this question.