The Jillian Michaels DietBet

Lose 4% in 4 weeks!

The Jillian Michaels DietBet

Sep 24 - Oct 21/Game has ended
Hosted by Jillian Michaels
Join another game







Sep 24





Let Jillian help you lose weight & you could win $$, plus 'bonus stakes'!



Game Begins

Sep 24

Last Day to Join

Oct 07

Final Weigh-In

Oct 22 - Oct 23



winners will be selected daily based on who invites the most players. Prizes include: signed books & DVDs, plus free subscriptions to <a href="" target="_blank"></a>


Bet $30

to start

Lose 4%

in 4 weeks


Split the pot

How do you verify the weight loss?

For all official weigh-ins, you'll be prompted to submit your official starting weight. Our standard weigh-in process involves you submitting 2 photos: one of you standing on a scale in lightweight clothing (no shoes, hats, belts, watches, coats, or outerwear), and another of the scale’s readout with your weigh-in word written on a piece of paper.

What you'll need

  • A scale (preferably digital)
  • A digital camera or smartphone
  • A full-length mirror or someone to take your photo
  1. Privacy FAQ +
  2. How we prevent cheating +

Does this actually work?

Out of 842,145 DietBetters, 98.71% have lost weight during their challenges. Combined, they've lost 15,080,134 lbs and won $62,263,235. In other words...yes.

All results shown on DietBet are from actual users. Individual results may vary.

Don't take our word for it


10/01/2014 8:09AM

Keep the momentum going! A new game has been set up for all players starting on Oct 07, 2014.

Good luck!

Michelle W. likes this comment.


03/26/2014 7:12AM

Keep the momentum going! A new game has been set up for all players starting on Apr 01, 2014.

Good luck!


12/22/2013 8:22PM
Hi everyone! I had such a blast with this group I thought I'd invite you all to join me in my Lean and Mean in 2014 DietBet starting the first of the year!


12/14/2013 5:22AM
Please join me for Fit Mamas Rock into 2014! starting on Dec 31. We are going to start off the New Year Right and make some money!

Click here to play with me:


11/29/2013 2:58PM
I came here looking to see if anyone had any ideas on a bet to join for December. Looks like I may look at truevalentines she has posted. If you are looking for one to join Jan 1 check mine out please. Thanks and hope you all meet your goals.

truevalentine likes this comment.


11/23/2013 11:27AM
I am starting a new bet beginning December 1st. I love keeping the motivation that started here going! Looking forward to ringing in the New Year a little lighter, a little healthier and a little more motivated to keep going! Come join me!


11/21/2013 10:06AM
OMG! Does anyone listen to The Jillian Michaels Show podcast? I sent in a question and I am going to be the caller today! So excited to get to talk to Jillian Michaels herself. Tune in! Jillian, talk to you in a few hours!

Janelle , Bohemian and Valerie M. like this comment.

View 3 more comments

Stephanie L.

Oh my gosh, that's AWESOME! I LOVE Jillian, tell her I said, "HI!" LOL


Yay! I listen every week!

Angela C.

11/13/2013 2:06PM
Hey, DietBetters! A friend of mine who lost 70lbs and wrote a book of tips ( is hosting a DietBet. Join now:

Jillian B.

11/11/2013 3:37AM
I'm playing in a DietBet challenge where we will all compete to lose 4% of our weight in four weeks. The game will start on 11/17/2013. Join me today Jillian's Dietbet.


11/08/2013 12:32PM
Who won the bet? I'd liket to see before and after pictures! Where (a link) can we go to see this?
View 2 more comments


My pictures are locked as well.

Liz M.

So are mine!

Ready to bet on yourself?