. 2020 Dec 9;10:575559. doi: 10.3389/fcimb.2020.575559

Table 1.

Inclusion and exclusion criteria.

Inclusion criteria	Exclusion criteria
1. Studies published in the last twenty years, from 2000 to June 2020 were included in the search; 2. English language; 3. Human and animal (rodent) studies; 4. Studies that report the impact of diet, obesity, diabetes, on the presence COVID in the intestinal ecosystem or studies comparing the long-term and short-term impact of diets on the intestinal microbiota or studies reporting the metabolite’s signature on this COVID; 5. Studies that report the correlation between host health and the presence of COVID virus in the intestinal ecosystem.	1. Articles that select COVID virus from other animals (not rodents); 2. Data sets that did not provide information on dietary, dietary, intervention, and nutritional properties associated with the presence of COVID in the gut; 3. Failure to provide data for the presence of COVID in the intestinal ecosystem.

Inclusion criteria

Exclusion criteria

1. Studies published in the last twenty years, from 2000 to June 2020 were included in the search;
2. English language;
3. Human and animal (rodent) studies;
4. Studies that report the impact of diet, obesity, diabetes, on the presence COVID in the intestinal ecosystem or studies comparing the long-term and short-term impact of diets on the intestinal microbiota or studies reporting the metabolite’s signature on this COVID;
5. Studies that report the correlation between host health and the presence of COVID virus in the intestinal ecosystem.

1. Articles that select COVID virus from other animals (not rodents);
2. Data sets that did not provide information on dietary, dietary, intervention, and nutritional properties associated with the presence of COVID in the gut;
3. Failure to provide data for the presence of COVID in the intestinal ecosystem.