Just in case you dont know what i'm referring to it's these:

I've heard them called Shanks, Food Bars, and Health Bars. I'm wondering what the proper (official) name for these is.

3 Answers

There are multiple names.

Here are some of the names referenced on the Minecraft Wiki. First, is "Hunger Indicator".

The hunger indicator is shown above hot bar, to the other side from health indicator.
_{^{- Hunger - Minecraft Wiki}}

To me this name seems the most fitting, seeing as it matches the "Health Inidcator".

Next, we get two in one: the hunger bar / food bar.

The player's hunger value is shown on the heads-up display in the form of a hunger bar (also called food bar)
_{^{- Hunger - Minecraft Wiki}}

After reading this, I realised that the "Health Bar" has multiple names, so any of these names listed above are acceptable.

_{Note: there are probably several other names for this, these are all the ones that i found}

It's either hunger value or food bar. I've taken this from jeb directly and the wiki.

One name for the "Food bar", is the Hunger bar

The player's hunger value is shown on the heads-up display in the form of a hunger bar (also called food bar), which is similar to health bar (located above the hotbar), located opposite to it and represented by ten drumsticks.

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It is also more commonly referred to as the Food bar, but it can also be referred to as the Hunger meter

Saturation is the first statistic to decrease when a player performs energy-intensive actions, and it must be completely depleted before the visible hunger meter begins decreasing.

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Also referred to as the Hunger Indicator, it is referred to differently in different contexts, although the most common is the Food Bar