Mega Mega Transformer - Win a Sauna!

Lose 10% in 6 months!

Mega Mega Transformer - Win a Sauna!

Apr 04 - Oct 03/Game Closed
Join another game







Apr 04



It’s getting HOT in this transformer! Join the Mega Mega Transformer and be a part of the biggest bet Transformer game ever! Lose 10% of your body weight in 6 months in this mega accountability game. Plus, 1 player will win an Infrared 2-Person Sauna at the end of the game.



Game Begins

Apr 04

Last Day to Join

Apr 17


4th and 5th of every month


Bet $100

per month

Lose 10%

in 6 months


Split the pot

10% is easier when you break it up, so each round has its own goal - and its own pot to split.
Check out the FAQ to learn more!

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 +
  3. Disqualification Limits +

Does this actually work?

Out of 935,585 DietBetters, 99.8% have lost weight during their challenges. Combined, they've lost 18,069,365 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

chelsea c.

05/25/2022 12:55PM
  • Anyone’s spouse suck at taking photos?! My husband hates doing it and gives me like one try. It’s hard to make him do it weekly these are two weeks apart. I need a full length mirror. LOL

Katherine M. , Allyson G. and like this photo.

View 5 more comments

Katherine M.

These pictures are so cute!! I love them. I can imagine the pressure with only getting one try! I have to do multiple shots even though I do it myself! :grinning:


I put some books on my desk, balance my phone against them, then take a 10 second timer shot. Works really well even in my tiny studio apartment

Ready to bet on yourself?