Received: 26 February 2021
Accepted: 16 April 2021
First Online: 17 May 2021
: This study included data from NHANES 2011-14, which obtained ethics approval from the National Center for Health Statistics (Protocol #2011-17). All methods were performed in accordance with the relevant guidelines and regulations (Declaration of Helsinki), and all participants provided their informed consent.
: Not applicable.
: S-YT was previously involved in clinical studies that were funded by the Almond Board of California and the Californian Walnut Commission. The other authors declare that they have no competing interests.