what is the meaning of this sentence in that context?

Question

In the below link, I have found some text. I don't understanf why the author wrote what she wrote. http://www.greenoptimistic.com/fruit-vegetables-taste-europe-america/#.VsK-rPl94gs

the title of article is "Do Fruit and Vegg Taste Better in Europe?"

Is it true that Europeans get better tastier fruits and vegetables than the Americans? According to science, yes.

Initially, I was a bit hesitant to write this piece for a two main reasons. The first one is the fact that I have never eaten American vegetables, and the second one- I definitely have a lot to say about quality of European vegetables, especially if sold in a supermarket.

But, for certain, the findings of Julia Belluz of Vox triggered my attention. She shares her experience of visiting rural Italy, where she ate the most delicious tomatoes, and then moves on to finding the reasons why Americans do not have such tasty produce.

Now, on one hand, she might be very right. When comparing supermarket American tomatoes, with these small flavorsome ones that she has tried, it must have been quite a shock. The reason is that American supermarkets apparently have regulations on size of tomatoes they sell, meaning that anything smaller than whatever it is on the shelves now, would just not make it.

To go further into tomatoes, scientists have found out that the genetic manipulation that has been done on those particular red and juicy supermarket fruits (vegetables, depending on which side of this argument you are), makes them grow. This growth, however, limits the production of sugars by the plant, and therefore the resulting tomato is pretty looking but tasteless........................

what does she mean by "(vegetables, depending on which side of this argument you are)"?

Answer 1

Tomatoes has been long discussed as whether they are fruits or vegetables. Although they are registered as fruits, common people like me classify them as vegetables.

...supermarket fruits;here the author classifies tomatoes as 'fruits'.

Then the author opens a parentheses and writes 'vegetables; depending on which side of the argument you are'.

That argument is the discussion of tomatoes whether they are fruits or vegetables.

Here is the wikipedia page for tomatoes: Tomato I quote two sentences from that page;

The tomato (see pronunciation) is the edible, often red berry-type fruit of the nightshade Solanum lycopersicum,1[2] commonly known as a tomato plant.

While tomatoes are botanically and scientifically the berry-type fruits of the tomato plant,[7] they can also be considered a culinary vegetable, causing some confusion