Meanings of strict vegetarians in English

We much doubt whether those Indians who are strict vegetarians could consume such quantities.

They were strict vegetarians, and ate neither meat nor fish.

Because members of the Heidelberg Cylinder are strict vegetarians.

How then are strict vegetarians to make pastry, butter being classed with the forbidden fruit?

Because of this belief the Pythagoreans were strict vegetarians, abstaining religiously from the use of all animal food.

As is well known, the Hindoos are strict vegetarians, neither meat, fish, poultry, nor even eggs being allowed.

They are strict vegetarians.

I may be prejudiced, but it does seem to me that the strict vegetarians are skinny, sallow looking lot of humans, speaking generally.

It's a bustling, chaotic city that is predominately vegetarian -some of them Jain, strict vegetarians who won't eat vegetables with roots below the soil.