According to the American Hardwood Council, confusion is fueled by the myth that wood is "alive" and needs to breathe. On the contrary, according to the council's information center, wood doesn't need to be "moisturized" with oily cleaners and polishes. If wood dries and cracks it's due to changes in humidity, not for lack of oil.

Basic Cabinet Care Tips

• Wipe up spills, splatters and water spots as they occur - keep the cabinets dry.
• Clean as needed with a soft, lint free cloth. Use a mild detergent or soap and warm water.
• Dry surfaces immediately with a soft cloth.
• Avoid using a dishcloth or sponge - it could contain remnants of grease or detergents.
• Do not use products with bleach, ammonia or abrasive additives.
• Never use scouring pads, steel wool or powdered cleaners.
• Do not allow oven cleaners to come in contact with wood finishes.
• Avoid placing small kitchen appliances where heat is directed onto cabinet surfaces.
• Avoid draping damp cloths or dishtowels over cabinet doors - excessive moisture
  can cause permanent damage.
• Do not use waxes or polishes.