How's those carrots treating you?

So my team at work have quite close working quarters since the earthquakes , we work out of a 5 bedroom apartment (2 per bedroom). And have our breaks in the living/dining room.

There's a few ladies at work who have taken up a daily commentary on my eating habits. They are older ladies who when they found out I had joined Ww (at my maximum volume) said things like "why on earth have YOU joined Ww?" "have some chocolate love it won't kill you" and my personal favorite "oh what rubbish may as well give it up and eat a muffin, it won't work".

In march they implemented fortnightly shared morning tea, with each room taking a turn at bringing morning tea. I'm not overly concerned with what is brought - if there's healthy choices I'll have some, if not I'll still happily have a cup of Tea and join everyone for a chat. However 2 woman noticed my lack of enthusiasm for their giant baked goodies and store brought chocolates as I broke out my carrot sticks one morning (i was hungry and didn't think anything of it) I've never been asked so many questions about vegetables in my life.
"do you like carrot sticks?" (yes) "wouldn't you rather have a piece of cake? (sometimes but not today) "don't you get sick of carrots?" (no) "what else do you eat?" (huh? Food?) "like if you weren't eating carrots (oh I usually have fruit for morning tea?)...

At this point I looked at my watch, oh breaks over? So soon? Rats.

"*eats row of chocolate and gets up to leave* so how are those carrot sticks treating you?" (good thanks.)

Every single meal I've eaten at work since I get asked the same sort of questions by those two,
what's in that today? Veges? Aren't you sick of veges yet? How much oil did you cook that in? Don't be silly you can't cook that without oil! Are you vegetarian or something? Do you get sick of Fruit? Another Orange, really?

It's tiresome, I don't understand this conversation. I don't understand their fascination with what I eat. I don't understand why we don't get to have the normal conversation we'd have if they come in and I'm not eating? Are my eating habits really so offensive?

/end rant.