“…In some instances, associations have been also revealed with factors such as the composition of the oral microbiota (Jockel-Schneider et al, 2021 ; Li et al, 2021 ). Diet has also been related to inflammation in periodontitis (Woelber et al, 2017 ; Kotsakis et al, 2018 ; Botelho et al, 2021 ; Rowińska et al, 2021 ) and other conditions as disparate as cancer (Deng et al, 2017 ; De Almeida et al, 2019 ), diabetes (Prana et al, 2019 ; Jafaripour et al, 2020 ), cardiovascular diseases (Razquin and Martinez-Gonzalez, 2019 ; Kovell et al, 2020 ), Alzheimer's disease (McGrattan et al, 2019 ), depression (Koopman and El Aidy, 2017 ), and even COVID-19 (Iddir et al, 2020 ).…”