In B/X D&D that would either be a +1 on a reaction check (if there's no fight yet) or else would be a move in evasion resolution, where there is a % chance that the creature stops to eat the food - I can't recall what that % chance is in B/X, but in Gygax's DMG it works like this:
Food, including rations and/or wine, will be from 10% to 100% likely to distract pursuers of low intelligence or below, providing the food/wine is what they find palatable. Roll a d10 to find the probability, unless you have a note as to how hungry or food-oriented the creatures are. Add 10% to the result for every point of intelligence below 5, and give a 100% probability for non-intelligent creatures pursuing. If probability is under 100%, roll the d10 a second time, and if the result is equal to or less than the probability determined, then the pursuers break off pursuit for 1 round while the food/wine is consumed.