Best berry to restore HP?

[CloysterOyster]

What would be the best berry for me to use after one of my Pokemon uses Belly Drum and wanting to restore its HP back to 100% afterwards?

 

[Absolitetion]

Sitrus Berry work well in SM. They restore 25% of your total HP by each use.

 

[VisionofMilotic]

In most of the more recent games the Sitrus berry is the best option, giving your pokemon 25% of his health back with no strings attached. However as of Pokemon Sun and Moon berries such as the Wiki berry, Mago, Iapapa,Figy and Aguav have been buffed from recovering 18% of a pokemon's HP to 50%.

The previously listed berries can be used as an alternative to the Sitrus berry, but while Sitrus activates when your health falls to 50%. The rest activate once your health drops to 25% and need to be flavor that matches the nature of your pokemon. They are higher risk, higher reward.

Generally berries only restore some of your HP rather than 100%. The closest way to get around it is to use the move Rest to restore all hp while holding a lum or chesto berry to awaken your pokemon from sleep. I wouldn't recommend that for this situation since you are already running a bellydrum set. It is something to think about however for another set when you really feel you need that 100% HP.

 

[Drayton]

Generally, Sitrus Berry serve better it heals nicely without any drawbacks, like miltonic said there's are berries who restore health but it's more a gamble thing if a pokemon isn't favor with spicy/sweet/sour/bitter and dry which caused them to confused somehow.

 

[Hikamaru]

While the Figy/Wiki/Mago/Aguav/Iapapa berries did get a boost to healing 50% HP in 7th Gen, they do have a drawback that you need a Pokemon of the appropriate nature to use them.

That's why the Sitrus Berry tends to be used most, as it still heals a reliable amount and doesn't come with a nasty side-effect.