These tiny scavengers will enter your home or business looking for moisture and an accessible food source. Sometimes even rotting or damp wood that has mold damage can attract ants. Most, but not all ants feed on most kinds of sweets. They also feed on cheese, meats, vegetables, grease, peanut butter, and dead insects. Ants often enter a home through cracks around windows or doors, but may also be able to get in through holes for wires.