How do I heal in Minecraft 1.8?

Question

I'm eating a load of cooked pork chops but my health isn't increasing, what do I do?

Answer

here is the article on the minecraft wiki on Food and Health

As of 1.8, health is not restored by consuming food, but rather slowly regenerates when the player's "Food Bar" is full.

and here

In the 1.8 update, the food mechanic was changed-- No longer does eating food regain health, but instead fills the Hunger Meter, which goes down when the player does things like running, sprinting, and mining. When the player has over 80% on the hunger meter, his health will slowly regenerate.

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