However, the frequency with which particular dietary modes have evolved varies considerably across different vertebrate lineages.
For instance, Japanese government abolished all calendar and holiday systems (once retained through contention by the people in remote rural areas for several decades) obtained from China, while retained some Chinese characters and lifestyles, including but not limited to dietary and dressing modes which tend to decline today.
By systematically retrieving data from the literature, we collected frequency data for the most relevant genetic variants of NAT2 in 128 population samples representing different subsistence modes and dietary habits.
To this end, published frequency data on the most relevant genetic variants of NAT2 were collected from 128 population samples (14,679 individuals) representing different subsistence modes and dietary habits, allowing a thorough analysis at both a worldwide and continent scale.
More precisely, they do not address whether the 'physiological' mode of delivering dietary lipids to the apical pole of enterocytes as complex micelles, known to be critical for intestinal lipid intake [10], is required to induce the effects reported.
However, the infant fecal microbiota is highly dynamic and subjected to numerous non-health related confounding factors such as age of infant, mode of delivery, dietary regime and consumption of antibiotics [17].
In addition to BMI, certain dietary patterns and a traditional mode of acculturation have been associated with risk of diabetes in NHs.
However, the possibility exists that differences in xenobiotic environments interacting with NAT2 could also result from differential dietary habits linked to subsistence modes.
Our results suggest a possible independent influence of both the dietary habits associated with subsistence modes and the chemical environment associated with climatic zones and biomes on the evolution of NAT2 diversity in sub-Saharan African populations.
Thus, this hypothesis does not necessarily call for the existence of specific dietary components associated with subsistence modes, and hence has the advantage of being compatible with the opposite pattern of variation observed in sub-Saharan Africa with respect to Central Asia, where higher slow acetylation prevalence is observed in sedentary agriculturalists than in nomadic pastoralists [ 43].
