"Unsupported claims" refers to statements or assertions that are made without any evidence or proof to back them up. It means that these claims are not based on factual information or reliable sources. Full definition
You're deviating from the original claims, making unsupported claims of your own. (law.stackexchange.com)
The best way to avoid being deceived by unsupported claims of expertise is by looking for documentation of expertise in the science domain appropriate to the product research being evaluated. (edutopia.org)
I still think that your article should updated based on the NCLC document, as it shows methodological errors and unsupported claims by Iuliano. (getoutofdebt.org)