If you dream that you eat jam, the interpretation is that you'll have surprises, sweet things and new discoveries. If you dream that you make jam, then the interpretation is related to a happy family life. If you dream that you put jam on something, the interpretation is that you might be too overwhelmed, having too many responsibilities and commitments, and you have to learn to say no.
You may look in dreams interpretation for other symbols :
Jar : If you dream a jar, the dream symbolizes the female uterus. You are looking for protection. The dream may also be a pun on feeling "got stuck" or intimidated ... >tml">
Jaundice : If you dream that you or someone else has jaundice, the interpretation is about indecision. You have problems coming to a decision about something. Alternatively, ...