Good articles in Annals of Internal Medicine, and in Los Angeles Times. The HMR plan had the most short-term loss, but patients also had side effects including gallstones requiring gallbladder removal.

http://annals.org/article.aspx?articleid=2214178
Reviews
Efficacy of Commercial Weight-Loss Programs: An Updated Systematic Review
Kimberly A. Gudzune, Ruchi S. Doshi, Ambereen K. Mehta, et al.
7 April 2015
Data Synthesis: We included 45 studies, 39 of which were RCTs. At 12 months, Weight Watchers participants achieved at least 2.6% greater weight loss than those assigned to control/education. Jenny Craig resulted in at least 4.9% greater weight loss at 12 months than control/education and counseling. Nutrisystem resulted in at least 3.8% greater weight loss at 3 months than control/education and counseling. Very-low-calorie programs (Health Management Resources, Medifast, and OPTIFAST) resulted in at least 4.0% greater short-term weight loss than counseling, but some attenuation of effect occurred beyond 6 months when reported. Atkins resulted in 0.1% to 2.9% greater weight loss at 12 months than counseling. Results for SlimFast were mixed. We found limited evidence to evaluate adherence or harms for all programs and weight outcomes for other commercial programs.
Conclusion: Clinicians could consider referring overweight or obese patients to Weight Watchers or Jenny Craig. Other popular programs, such as Nutrisystem, show promising weight-loss results; however, additional studies evaluating long-term outcomes are needed.

http://annals.org/article.aspx?articleid=2214183
Editorial: The Role of Commercial Weight-Loss Programs
Christina C. Wee
7 April 2015
Ann Intern Med. 2015;162(7):501-512. doi:10.7326/M14-2238

http://touch.latimes.com/#section/-1/article/p2p-83232921/
Weight Watchers, Jenny Craig most reliable for weight loss, study says
By Karen Kaplan
April 6, 2015
Three of the programs relied on diets that delivered a mere 800 to 1,000 calories per day. Among these, the Health Management Resources plan recorded the most weight loss – 13.2% more than counseling alone after six months – but it also had some worrisome side effects. More than half of the HMR dieters experienced constipation, and 6% needed to have their gallbladders removed to treat painful gallstones. --Nbauman (talk) 02:11, 7 April 2015 (UTC)Reply

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"Health Management Resources® (HMR®)" listed at Redirects for discussion edit

  An editor has identified a potential problem with the redirect Health Management Resources® (HMR®) and has thus listed it for discussion. This discussion will occur at Wikipedia:Redirects for discussion/Log/2022 May 3#Health Management Resources® (HMR®) until a consensus is reached, and readers of this page are welcome to contribute to the discussion. BD2412 T 00:34, 3 May 2022 (UTC)Reply