Does it mean raw, uncooked, crude?

I guess it's the French word "crudité" that's used here, and yes, it means raw (non-cooked) vegetables. Look here:

Yep -- when we want our raw vegetables to sound fancy, we eat them in French.
Students: Are you brave enough to let our tutors analyse your pronunciation?
Emotion: big smile
Yes, I see. This diet book has so amny French terms. I think it is unnecessary and funny.
I love raw carrots... Emotion: big smile

Am I a rabbit? Emotion: stick out tongue
You can be if you think you can.Emotion: wink
Students: We have free audio pronunciation exercises.
Guinea pigs also like them Emotion: tongue tied
Eheh... Emotion: stick out tongue