Summer Slim Down Challenge

Lose 4% in 4 weeks!

Summer Slim Down Challenge

Jul 01 - 28/Game has ended
Join another game







Jul 01



Join our group as we encourage one another towards a healthier lifestyle!



Game Begins

Jul 01

Last Day to Join

Jul 14

Final Weigh-In

Jul 29 - Jul 30


Bet $40

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 895,278 DietBetters, 98.71% have lost weight during their challenges. Combined, they've lost 16,430,745 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

Liz G

07/30/2020 5:43PM
  • Yay made it in the last few hours!

Allie W. likes this photo.

Yvette B.

07/29/2020 10:32AM
I already made goal last week I so wish I could just use my official weekly weigh in lol I'm not home with my scale right now 😭

Lisa O.

07/29/2020 8:27AM
I didn't make my goal for this bet. I had a difficult four weeks. I had two funerals, one of someone dear to my heart. I traveled out of state for one of the funerals, had a birthday, helped a friend through the most difficult loss she will ever feel, helped another through a break up, had a sick dog, and I still lost weight. I didn't make my goal but I still managed to lose four pounds. I'm proud of that and next time I'll do even better. Congrats to those that made their goal!

JacZacMom , Shannan J. and like this comment.


That’s amazing :sparkling_heart:

Tara H.

07/29/2020 4:53AM
I am off by .3! Will weigh again in a bit. Argh!

Amanda R. likes this comment.

View 1 more comment

Mel B

I was in the exact same boat too... went and mowed the yard and sweated that .3 right out!

Yvette B.

You've got plenty of time still that's an easy bathroom break away


07/29/2020 2:50AM
Weigh-in submitted... Always a relief! Now the short wait until official word it is accepted and ready for a treat.

Best of luck to all!

Jen W. and Tara H. like this comment.

Karrie D.

How long does it usually take for approval? I’m a first timer.


In my experience, it's usually pretty quick = within a couple hours but I suppose it could vary for one reason or another. Keep the faith!

Hilary I.

07/28/2020 7:20AM
Woo hoo! Hit my goal this morning and thought it was weigh-in time, then realized I was a day early. Now I’m nervous about maintaining it! It has been hard to get to this point but I’m super proud I made it and more importantly, my body and mind are feeling more energized than they have in a long time! Good luck to everyone.

Liz G , ALISON W. , JR , Ginger P. and Shannan J. like this comment.

Shannan J.

My goal has been hit for a week and then today i am a lb over!! Looks like I’ll be eating only veggies today :persevere:

Liz G

07/27/2020 3:16PM
Ok unofficial weigh in 73% will do 2 workouts tomorrow!!!

Shannan J. and Hilary I. like this comment.


07/25/2020 7:05AM
I am 93% of the way! I am so committed to getting healthier! KEEP GOING EVERYONE! We can do this!

Emily B. , JR and like this comment.

Liz G

Only at 59% might not win but gonna try drinking tons of water and working out hard til weigh out. Wondering if I submit weight today can I weigh out later?


07/24/2020 8:00AM
  • Another day, another boring cup of special K. We got this only a couple more days!!

Kelly W. and Allie W. like this photo.


Omg that tools so good :heart_eyes: cereal is a snack food for me so I stay away from it when I’m trying to keep calories at a weight loss level. Yum!


07/31/2020 5:05AM
Your game has now been finalized. Congratulations to the winners! You earned a 32.4% return on your money simply by investing in your own health. Don’t you wish all of your investments paid out at that rate of return?

The $52.96 in winnings will be deposited as points into your account. You can request a payout, or use them to become a Member or join a new game ! Payouts process within 24 hours. As promised, here are the top player titles. Drum roll, please…
- Most Liked Player: Erin
- Most Generous Liker: Spillz
- Most Liked Comment: "I am 93% of the way! I am so committed to getting healthier! KEEP GOING EVERYONE! We can do this! " by ALISON W.

Tina T. , Spillz , Erin and Jen W. like this comment.

Ready to bet on yourself?