The 2019 Addendum, in conjunction with the original health and wellness coaching (HWC) Compendium, organizes HWC literature with the aim of assisting researchers and providing a resource for practitioners. The Addendum extends the initial compendium by adding HWC-related literature published from mid-2016 to mid-2018. It divides selected articles into 8 categories, including a new miscellaneous section complementing categories examining HWC effects on cancer, cholesterol, diabetes, heart disease, hypertension, obesity, and wellness. 

The 2019 Addendum again provides in-depth information about the nature, quality, and results from each article in a detailed spreadsheet provided as an electronic appendix. It contributes another 104 peer-reviewed coaching-related to the 219 articles in the HWC Compendium. This most recent research again describes HWC as a favorable intervention with treatment potential in all categories. Trends in HWC (i.e., e-coaching and group coaching) are identified, and there is also discussion of future research needs. In conclusion, the field of HWC is growing rapidly, as does the research describing this clinical practice; the 2019 Addendum to the HWC Research Compendium organizes and assists understanding of this literature.