DietBet Review: Using Money To Motivate You To Lose Weight

It’s that time of year, and since I eventually lost 50 pounds with the help of this and other weight-loss betting sites (and have kept it off since), and I wanted to share my experiences including both positive and negative aspects.

DietBet.com runs weight-loss challenges where I bet my own hard-earned cash that I could lose 10% of my body weight within 6 months. More specifically, a group of folks (strangers or friends) agreed on a weight loss goal, put money into a community pot, and the winners split the pot. Here’s a look back at how the process worked along with some helpful tips and detailed numbers.

Game basics. You pick from a list of available “games” that are starting soon. All of them have a goal of either losing 4% of your body weight in 4 weeks (Kickstarter), or 10% in 6 months (Transformer). I chose the 10% goal and picked the group with the most participants because Dietbet uses the poker rake model where the winners take money from the losers. This is smart because Dietbet doesn’t risk any of its own money (also doesn’t have any incentive for you to lose).

Weigh-in rules and tips. Your weight is verified each round by uploading two pictures: one with your feet on a digital scale, and another of your entire (lightly-clothed) body on the same scale. You are given a special keyword to ensure that the weigh-in is done during a 48-hour window. Here are my tips:

  1. Use the smartphone app. Having the smartphone app made it so much easier to snap the pictures and upload with a few taps. iOS and Android only.
  2. Check the dates with your work schedule. During one of my weigh-ins, I was on the road. Dietbet says digital scales are “preferred” but the only thing at my hotel’s gym was a non-digital balance scale. My submission was still accepted. If my hotel gym didn’t have a scale at all, I would have had to search for a Wal-Mart or something.
  3. Know the rules and give yourself time for rejections. One of my submissions was initially rejected because I was wearing running shoes (in that same hotel gym) and I forgot that shoes aren’t allowed in the pictures. You only get a 12-hour grace period after a rejection to re-submit a qualifying weigh-in.

Overall, I felt that Dietbet was fair and quick when judging my weigh-in pictures. You may also be “audited” and be required to submit a video verification. I did not get audited.

Money details. The bet amounts can vary by game, but mine was for $25 a month times 6 months. I was offered one month free ($25 discount) if I paid $125 upfront, but since this is all about the behavioral component for me, I wanted the monthly charge to show up on my credit card bill. Players who have chosen to place their bets on a monthly basis may drop out at any time and avoid being charged for future, unplayed rounds.

There is one round per month; Rounds 1 to 6. Half of the total money bet is put towards Round 1 through 5. That is $25 x 6 / 2 = $75, split across 5 rounds is $15 per round. The other half is put toward the final weigh-in round. So $75 is bet on Round 6. Here’s a screenshot that shows my actual winnings from each round:

  • Round 1 Breakdown: $16.09 (7% ROI on $15 bet)
  • Round 2 Breakdown: $26.94 (80% ROI)
  • Round 3 Breakdown: $31.36 (109% ROI)
  • Round 4 Breakdown: $31.50 (110% ROI)
  • Round 5 Breakdown: $30.42 (103% ROI)
  • Round 6 Breakdown: $152.87 (104% ROI)

I ended up winning $289.19, for a net win of $139.18. That’s a solid 93% return on my $150 initial bet! According to their documentation, the average “win” is 50% to 100% of your contribution. I would venture to guess that the 6-month games have a higher overall payout due to a higher difficulty level.

As noted above, Dietbet makes their money by taking a cut of the gross pot before distribution, between 10% to 25%. In a previous post, I erroneously assumed that the numbers being reported above were before fees were taken out. The numbers are actually net of fees. (You are always guaranteed never to lose money if you win, which otherwise technically could happen if enough people win.)

Your winnings can be withdrawn either via PayPal or paper check, but you have to pay a $5 fee and make special request for a paper check. When withdrawing via PayPal, you won’t pay any fees, and I was sent my money within a hour. Here’s screenshot proof of my winnings payout showing no fees.

Warnings. When signing up for a challenge, Dietbet will automatically add $20 of “Official Weigh-in Tokens” to your cart. These are not mandatory. I think using the word “Official” is misleading. They should use “Optional” or “Additional” instead. You should treat them as extra raffle tickets for prizes like Fitbits and such. If you want that, fine, but otherwise be sure to remove them otherwise it’s just wasted money.

Bottom line. I committed to a Dietbet Challenge to lose 10% of my initial weight over 6 months. You can see upcoming Dietbet games here. I lost the weight, completed my verifications without hassle, won the bet, and was paid my winnings. There were a lot of factors that helped me lose weight and change my eating habits:

  • Loss aversion is quite a strange thing. Even though 25 bucks a month isn’t all that much money, the prospect of losing it was a powerful motivator.
  • The Dietbet community board for my challenge was quite positive in supporting other people towards their weight-loss goals.
  • I created extra motivation by telling people about the challenge as I didn’t want to admit publicly to failure.

While Dietbet was not there to cook my healthy meals, exercise for me, or keep me away from the late-night Doritos, it was the missing catalyst that I needed to get my health back on track. For other people this might be a heart attack or other medical issue. I’m glad I didn’t have to wait for something like that. Even if I “lost” the challenge but also lost 5% of my body weight, I might have still seen it as an overall positive experience.

See my separate Healthwage Review, a similar service. You can do both at the same time.

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