As most frozen veg is now frozen on site as it is picked, yes it can be better vitamin-wise than buying veg that has been hanging about in cold stores for three weeks waiting for a buyer. When you grow your own veg, it's truly amazing how long veg lasts compared to what you buy as fresh from the supermarket. It's best cooked from frozen though. Soup is an ideal way to use it.
granjura as I recall, asafoetida in French is known as devil's shit.
. Merde du diable.
Actually, its proper name is pretty much the same. L'asa fetida, sorry don't know how to do accents on this computer.