Wild Carrots

Pocket: I thought I sent you out for carrots?
Denim: You did sir. These are wild carrots.
Pocket: So what's with all the crazy colors?
Denim: Actually, these are the original carrot colors. It's only in recent centuries that we've gotten used to seeing only orange carrots.
Pocket: We can't serve these. Scrape the colors off.

Denim: You see, sir? These are the real colors.
Pocket: I can't imagine what Master & Mistress will say.
Denim: Given their love for travel, I'm sure they'll be interested to know that wild carrots like these originated in Afghanistan, and are still popular in India. For example, did you know--
Pocket: I didn't ask for a history lesson. If this is all we've got, we'd better start chopping.

Pocket: It's a shame it's not autumn. I could present these as harvest carrots.
Denim: Like I was going to say, the purple carrots are high in anthocyanins.
Pocket: Cyanides? What's wrong with you? We don't want to kill Master & Mistress!
Denim: Anthocyanins aren't deadly, sir. Rather, they're high in antioxidants. They protect the internal organs, lower the risk of developing high blood pressure, and are good anti-inflammatory agents. They'll help protect Master & Mistress against cancer and diabetes, as well as cardiovascular and neurological disorders. 

Pocket: Well, I suppose if they're fit for Human consumption, we can serve them. Here, I'd better sample them first.
Denim: Be careful, sir. Remember: tthey're wild.
Pocket: Yeah, I caught the Afghanistan reference. Don't worry, cadet. We're Daleks. We can take on any potential danger. That includes Cybermen, Zygons, and wild carrots.