canesisters said:
Playing devil's advocate (just cause I can

)
I'd still suggest that you save the fresh veggies for
your next party and let her put on the party she's planned.
The important part is to spend time with family and to celebrate that a family member has made it one more year.
That is something that alot of folks won't be doing this Summer.
just my opinion
That's very true. I like how you think Cane.
Early in our marriage my DH and I were known as the "health freaks" on both sides of the family. My attitude was always,
this family member thought enough of us to invite us and went to some inconvenience and labor to make a meal. I will eat what they offer and be grateful.
My body is not a temple, it will get over whatever this food has in it that I wouldn't ordinarily eat. We had enough hurdles to get over with some family memebers accepting us, I didn't want to appear uppity.