The Blood Detective software analyzes blood test results and compares them to healthy ranges to identify nutritional deficiencies and make supplement recommendations. It was developed by Dr. Michael Wald based on years of research. For a patient with severe macrocytes, which can indicate vitamin B12 or folate deficiencies, the software recommended supplements like B12, folate, enzymes, omega-3s, and antioxidants. However, the analysis noted that blood work alone does not provide a full diagnosis, so nutritional recommendations require a comprehensive medical evaluation.