To the question Why does chocolate ice cream melt faster than others? I wrote an answer that suggests that it's not because of chocolate ice cream's dark color, but instead because of a lower melting point of chocolate ice cream due to more salt.
Salt depresses the melting point which is why it is put on roads and sidewalks in the winter in some cold parts of the world, and why salt is added to the ice water bath when making ice cream.
I'm wondering if there could be some truth to this theory, so I'd like to ask chocolate ice cream tend to have more salt than strawberry or vanilla?