A diagnostic method and system for determining the relationship between various substances that constitute or affect the formation of RNA molecules. These substances affect the production of RNA, which activates and maintains interactions between other bodily substances that include but are not limited to, proteins, hormones, peptides, enzymes, amino acids, bacteria, viruses, fungi, etc. in the body. The diagnostic method provides the appropriate information to a physician to identify an appropriate treatment to maintain or achieve a homeostatic relationship between the aforementioned substances that comprise or affect the formation of RNA molecules to enable the adequate production of RNA molecules to effectively manage interactions between other bodily substances. A homeostatic relationship between the substances that comprise or affect the formation of RNA therefore enables the establishment of proper interrelationships and interactions between other bodily substances regulated by RNA so as to ensure wellness and prevent chronic diseases.