There are several forms of DNA testing, and it is important to understand the difference between all the forms of testing available to you as a consumer.
Diagnostic based testing: Testing for genes whose known mutation are deterministic of certain diseases (ie. Cystic fibrosis, Huntington's Disease)
Prognostic/Therapeutic based testing: Testing for genes after a disease is diagnosed to determine the impact of the disease (Breast cancer with Her2 amplification means a more aggressive cancer but also a cancer that can be treated with the cancer drug Herceptin)
Risk Assessment testing: Testing for genes known to have a clinical risk associated with their mutation (ie. testing for the BRCA1 and BRCA2 genes)
Association-Based testing: Testing for genes whose combination of variations MAY contribute to several undesirable health outcomes, and when combined with non-genomic factors like lifestyle, environment and diet/nutrition, could increase your risk of developing certain diseases and health conditions
Please note that we are NOT a diagnostics, prognostic, or risk-assessment testing company. We are an association-based testing company. We identify potential risk associations between certain diseases and genetic-based outcomes. Your possession of a specific variation within your gene will NOT indicate a diagnosis for a disease, but it MAY contribute to the overall risk of developing a disease or health condition when combined with other non-genomic factors. As a result, we do NOT test for the BRCA genes.