Khloe Kardashian is helping people change their bodies and lives in the trailer forRevenge Body with Khloe Kardashian.

The first look at the upcoming E!

reality series opens with the youngest Kardashian sister discussing her own weight battle.

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I was always overweight as a kid, she admits.

If I was stressed out or sad, I would eat.

Throughout the preview, the 16 participants realize how tough a transition they are making.

What the f did I get myself into?

asks one competitor, echoing the sentiments of anyone who has ever made such a drastic lifestyle change.

Who can legitimately say that their life was changed by a Kardashian?

asks one weight-loss hopeful.

Revenge Bodypremieres on Jan. 12.

Watch the trailer above.