How do you sell nuggets in Pokemon White?

You can't sell nuggets in Pokemon White (or any other mainline Pokemon game).

Nuggets are used for a few things:

* Holding Items: You can give a nugget to a Pokemon to hold, which increases the amount of experience points they gain after a battle.

* Selling to the Recycle Shop: This is available in Pokemon Black 2 and White 2, but not the original Black and White. You can exchange nuggets for other items at the Recycle Shop.

However, there's no way to sell nuggets for money in any of these games.