Protein

Protein is a consumable item which can be purchased from each region's League, or traded for Berries with the Berry Master of each region from Johto onwards. It can be fed to a Pokémon to increase the amount of attack that Pokémon gains by 1 per protein per hatch. Each Pokémon can consume a total of 5 proteins per unlocked region.

=How to Use= Go to Start Menu > Items > Item Bag, select the protein and select a Pokémon to use it on. Once used the effect is permanent and cannot be removed by any means.

=New Efficiency= Below is a list of the most efficient Pokémon to breed after they have been fed the max amount of proteins for that region unlock. Note that this does not take into account the reduced damage output for Pokémon in non-native regions.

Sinnoh
=Price=

When bought from the Indigo Plateau / Pokémon League, the price for Protein rises irreversibly, similar to Masterballs. It starts off at 10,000, increments by a factor of 1.1 every purchase, and caps at 1,000,000 after 49 purchases.