If you have "Food God" at the Spouse Palace and as the main deities (Branch can have up to 3 deities), yes it will not favor marriage. Is the same if decade stem is "Food God". However, it does not means 100% you cannot get marry, for example spouse palace being combined and transformed into "Direct Officer" in the main chart or during the deacde or even at certain years.
If one
. is strong daymaster
. has "Food God" at both the branch and stem (can be from main chart or decade) which means "Food god is strong",
her/his characters is storng, clever, but having or revealing an exaggerated sense of one's own importance or abilities (arrogant) and this arrogant is one of the main blockage.
Cheers.