As one who has spent more time than one wishes to remember polishing, am here to tell you there is no such thing as "feeding wood". It is something invented by advertising and marketing persons to get housewives to purchase polish in a can.
All good wood furniture is finished and or sealed with several layers of varnish and or wax, with newer pieces likely some sort of poly sealant. In such instances anything one applies over such surfaces is not going to penetrate that far if at all. What it will do is sit on the surface and over time build up.
In the case of older wood furniture, depending upon the finish a light coating of wax applied once every several years or so may be required, but nothing like the silicone, oil and wax laden sprays sold today.
Finally, the wood used in furniture is dead, so one cannot "feed" it anything. Oh it will respond to climate conditons and such, but then again so would a corpse or any former animate object that has ceased to live. Much like embalming, the finishing of wood seeks to preserve something that once was living, and whatever cleaning that is done has more to do with keeping dust, germs and whatever else that could damage the finish off, than feeding.
L.