Because they are referring to the person's diet. Many vegetarians call people who eat meat non-vegetarians while they usually call themselves omnivorous.
People who eat meat would be considered "non-vegetarians".
It has been suggested that the average population of non-vegetarians in the world is 950 out of every 1000 people. In the USA it is estimated that 96.7% of the population are non-vegetarian.
The RDA does not change for vegetarians/non vegetarians.
Chicken is meat. Non-vegetarians eat chicken because of the white meat.
Vegetarians
Sure, but then they'd be called vegetarians.
Semi-vegetarians, or "mostly" vegetarians.
China. India has a high percentage of lacto vegetarians.
People's bodies are different in general regardless of their diet. Some vegetarians are thinner than most, but for the most part, each person's body type is unique to them and not particularly their diet.
No, the meat that non-vegetarians eat makes them more susceptible to coronavirus. Of course vegetarians can get coronavirus!
Yes. Vegetarians have an RDA for iron 1.8 times that for non-vegetarians. Specifically, vegetarian women 19-50 years old need 32mg/day compared to the 18mg/day RDA for non-vegetarian women of the same age range.
Those people are called vegetarians.