No. 1
Atkins Diet.
No. 1
Atkins Diet.
No. 2 (tie)
HMR Program.
No. 2 (tie)
HMR Program.
No. 3(tie)
OPTAVIA Diet.
No. 3(tie)
OPTAVIA Diet.
No. 4 (tie)
Biggest Loser Diet
No. 4 (tie)
Biggest Loser Diet
No. 5 (tie)
Keto Diet.
No. 5 (tie)
Keto Diet.
No. 6 (tie)
WW (formerly Weight Watchers) Diet.
No. 6 (tie)
WW (formerly Weight Watchers) Diet.
No. 7 (tie)
Jenny Craig Diet.
No. 7 (tie)
Jenny Craig Diet.
No. 8(tie)
Nutrisystem Diet.
No. 8(tie)
Nutrisystem Diet.
No. 10(tie)
Raw Food Diet.
No. 10(tie)
Raw Food Diet.
No. 10(tie)
SlimFast.
No. 10(tie)
SlimFast.
No. 11(tie)
Vegan Diet.
No. 11(tie)
Vegan Diet.
No. 12(tie)
Volumetrics Diet.
No. 12(tie)
Volumetrics Diet.