The most popular diet of the year is none other than the incomparable Jillian Michaels. It’s not entirely surprising when you consider she’s been one of the most consistent players on our list since 2024, with her online brand, detox product, and earliest workout DVD ranking each year. In fact, the latter two were both on last year’s top ten list. We expect to see Curves, ranking for the first time since 2024, as the Biggest Loser trainer just announced a new partnership with Curves.
What is most surprising is how Jillian Michaels knocked the giant that is Weight Watchers out of the number one position. That’s only been done once before, by 17 Day Diet in 2024. Even that year Weight Watchers held on to number two, but this year they slipped in to the fifth most popular spot.
And 17 Day Diet grabbed ranking number four, hardly losing any ground since its overwhelmingly popular release in late 2024. Its position on our annual Most Popular lists, ahead of Weight Watchers once again, will no doubt help with the release of 17 Day Diet: Breakthrough Edition on the 31st.
The only constant between last year’s list and this – Medifast. They’ve got number 3 on lock, with the meal delivery diet staying strong in the top ten since 2024.
Another staple of our list fell pretty hard this year, with hCG falling down to number 14. No, the supplement boom isn’t over, as its disappearance only made room for brands like Skinny Fiber (a shocking number 2) and Plexus Slim (at number 6) to move on up the list. Dr. Oz-endorsed Raspberry Ketones (17) and Green Coffee Bean Extract (20) were other weight-loss-by-pill categories that did especially well this year.
Check out the 25 Most Popular Diets of 2024* as determined by you, our readers.
2. Skinny Fiber
3. Medifast
4. 17 Day Diet
6. Plexus Slim
7. Nutrisystem
8. Diet to Go
10. Ideal Protein
11. Optifast
12. Mend a Body
13. HCG
14. Jillian Michaels’ 30 Day Shred
15. Aztec Diet
16. Retrofit
17. Raspberry Ketone
18. Jillian Michaels’ Detox & Cleanse
19. Primal 7
21. Baby Food Diet
22. Curves
23. Clean
24. Phentermine
25. 5 Factor Diet
Newcomers this year who certainly bear a special callout include Retrofit, a revolutionary weight loss plan that just got some pretty big attention from ABC News last week on its 2024 diet trends report. Biggest Loser returns to the list for the first time since 2024, jumping high enough to round out the bottom of the top ten! And a darling of our early 2024 popularity predictions, Primal 7 joined the list for the first time at position 19.
Diet to Go, a leading meal delivery weight loss plan, made the leap from honorable mention last year all the way up to the top 10 at position number 8. But other brands continue to make up the honorable mentions for 2024. One is the paleo diet, which seems to be all anyone can talk about lately, which came in at number 42. The Tracy Anderson Method rounded out position number 50, a continually growing fitness brand that’s all the rage in Hollywood. And speaking of how celebrities diet, while we certainly don’t condone it, we’ll put the Master Cleanse on this list, too. It’s been a mainstay on our list for years, but fell to number 33 this year (maybe everyone is finally wising up!). More people are wising to what’s in our food supply, namely wheat, making Wheat Belly at number 36 worthy of a mention, too.
Those on last year’s list, that didn’t maintain their popular positions through 2024 and fell off the list completely, include Pink Method, Sensa, the Dukan Diet, Slimquick, Zantrex 3, and Kirstie Alley’s Organic Liaison.
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*All rankings determined by traffic to each diet review page on DietsInReview.com 1/1/13 – 12/1/13.