Best picks
The best non-prescription weight-loss programs in 2026, ranked by published evidence: the National Diabetes Prevention Program, WeightWatchers, Jenny Craig, Nutrisystem, Trilivy, TOPS and Noom, with dated prices.
Key takeaways
- In the Diabetes Prevention Program trial, a year-round lifestyle program cut new cases of type 2 diabetes by 58% compared with placebo over 2.8 years.[2]
- In CDC's National DPP, 14,747 participants lost 4.2% of their weight on average, and each extra session attended added 0.3% more loss.[3]
- A 2015 review found at least 2.6% (WeightWatchers) and 4.9% (Jenny Craig) more weight loss than control at 12 months.[1]
- In the WRAP trial, 52 weeks of WeightWatchers led to about 2 kg more weight loss at one year than 12 weeks.[9]
- TOPS members who renewed for seven years in a row had lost 8.3% of their starting weight on average, though only people who stayed were counted.[19]
In short: Ranked by published evidence, the strongest non-prescription program is a CDC-recognized National Diabetes Prevention Program (best for adults with prediabetes, and free for eligible Medicare members), followed by WeightWatchers (several independent year-long trials, from $12 a month) and Jenny Craig (strong older trials, for people who want meals delivered). Programs with regular sessions for a full year did best in the research, so the right pick is the one you can stay with for twelve months.
This list covers structured programs that do not prescribe medication: group, app and meal-based programs you can join on your own. Prices come from each company’s own pages and carry the date we checked them. Nothing here is for sale, there are no affiliate links, and the order would be the same if there were. For every kind of program, including medical ones, start at our weight-loss programs hub.
What the research says about programs in general
The best-known independent review of commercial programs, from Johns Hopkins researchers in 2015, looked at 45 studies, 39 of them randomized trials, and had no commercial funding. It found that at 12 months, WeightWatchers led to at least 2.6% more weight loss than control groups and Jenny Craig at least 4.9% more. Nutrisystem showed at least 3.8% more at 3 months, and very-low-calorie programs such as Medifast at least 4.0% more in the short term, with some fading after 6 months. For many other programs there was too little evidence to judge. The authors said clinicians could consider referring patients to WeightWatchers or Jenny Craig.
Two other findings shape our order. The U.S. Preventive Services Task Force found that effective behavioral programs usually had 12 or more sessions in the first year. And in the WRAP trial, a full year of WeightWatchers produced about 2 kg more weight loss than 12 weeks of the same program. Length and regular contact matter, so programs with year-long published results rank above programs with only short-term or self-reported data, as our How we choose method sets out: published evidence first, then self-monitoring tools, privacy, total cost and cancellation terms.
The best non-prescription weight-loss programs, ranked
Each card lists who the program suits, three evidence points, the price we found on the company’s own pages and one honest drawback. Two company sites (Jenny Craig and Nutrisystem) blocked our check on 2026-10-06, so their prices are from the companies’ pages as captured in late September 2026; the date on each card says which.
The 7 best non-prescription programs, ranked by evidence
1. National Diabetes Prevention Program (CDC-recognized lifestyle change program)
Best for Adults with prediabetes or at high risk of type 2 diabetes
- Original trial: 58% fewer new cases of diabetes than placebo over 2.8 years
- year-long program, weekly then monthly sessions with a trained lifestyle coach
- first 4 years nationally: 4.2% average weight loss, 35.5% reached 5%
Maker-stated specs
Price Varies by provider and coverage; no cost for eligible Medicare Part B members (checked Oct 6, 2026)
Drawback Only open to people with prediabetes or high diabetes risk, and real-world results are smaller than in the original trial
2. WeightWatchers (Core Program)
Best for People who want flexible eating, an app and group Workshops
- At least 2.6% more loss than control at 12 months (2015 review)
- WRAP trial: 6.76 kg (15 lb) lost at one year with 52 weeks of the program
- Lancet 2011: 5.06 kg vs 2.25 kg with standard care
Maker-stated specs
Price From $12 a month on a 12-month plan that auto-renews (checked Oct 6, 2026)
Drawback Points still need daily tracking, and the lowest price is a 12-month commitment
3. Jenny Craig
Best for People who want portioned meals delivered, with coaching
- At least 4.9% more loss than control at 12 months (2015 review)
- 7.9% average loss at 2 years in a 2010 JAMA trial
- meals under 300 calories, according to the company
Maker-stated specs
Price Examples of about $70 to $150 a week on June 2026 plan pages; Club Jenny shipping $20 per order (checked Sep 26, 2026)
Drawback The trials tested the old in-person program; today's online version has not been studied in its own trials
4. Nutrisystem
Best for People who want ready-made meals 5 or 7 days a week at a lower price per meal
- At least 3.8% more loss than control at 3 months (2015 review)
- structured plans with an app and coaching support
- 100+ menu items, according to the company
Maker-stated specs
Price Individual meals from $1.99; specialty plans from $99 for new customers (promotion) (checked Sep 25, 2026)
Drawback No independent long-term trials, and canceling early can charge back the first-order discount ($125 on the June 2026 page)
5. Trilivy (formerly Optavia), Reset 5 and 1
Best for People who want a highly structured meal-replacement plan with a coach
- 16-week trial: 5.7% average loss on 5 and 1 with coaching
- plan designed for about 800 to 1,000 calories a day
- very-low-calorie programs at least 4.0% more short-term loss (2015 review)
Maker-stated specs
Price $384 to $480 per order, with or without autoship (checked Oct 6, 2026)
Drawback The trial was short and funded by the company, and coaches are usually former clients rather than clinicians
6. TOPS (Take Off Pounds Sensibly)
Best for People on a tight budget who like peer support
- Members who renewed after 1 year: 6.0% average loss
- members renewing for 7 years: 8.3% (2015 study)
- nonprofit with weekly meetings in person or online since 1948
Maker-stated specs
Price $70 for the first year, then $60 and $48 a year (checked Oct 6, 2026)
Drawback No randomized trial yet; the weight data come only from members who chose to renew
7. Noom Weight
Best for Self-guided app users who like psychology-based lessons
- 2016 study of 35,921 app users: 77.9% reported losing weight, with no comparison group
- daily 5 to 15 minute lessons, food and weight logging
- a randomized trial is registered but its main results were not found
Maker-stated specs
Price About $17.50 to $70 a month ($169 for the most common 4-month plan, billed up front) (checked Oct 6, 2026)
Drawback Thinnest evidence on this list, and plans auto-renew (Noom settled a $62 million class action over renewals in 2022)
All 7 programs side by side
| # | Pick | Best for | Key specs (maker-stated) | Price range | Last checked |
|---|---|---|---|---|---|
| 1 | National Diabetes Prevention Program (CDC-recognized lifestyle change program) | Adults with prediabetes or at high risk of type 2 diabetes | Original trial: 58% fewer new cases of diabetes than placebo over 2.8 years; year-long program, weekly then monthly sessions with a trained lifestyle coach; first 4 years nationally: 4.2% average weight loss, 35.5% reached 5% | Varies by provider and coverage; no cost for eligible Medicare Part B members | Oct 6, 2026 |
| 2 | WeightWatchers (Core Program) | People who want flexible eating, an app and group Workshops | At least 2.6% more loss than control at 12 months (2015 review); WRAP trial: 6.76 kg (15 lb) lost at one year with 52 weeks of the program; Lancet 2011: 5.06 kg vs 2.25 kg with standard care | From $12 a month on a 12-month plan that auto-renews | Oct 6, 2026 |
| 3 | Jenny Craig | People who want portioned meals delivered, with coaching | At least 4.9% more loss than control at 12 months (2015 review); 7.9% average loss at 2 years in a 2010 JAMA trial; meals under 300 calories, according to the company | Examples of about $70 to $150 a week on June 2026 plan pages; Club Jenny shipping $20 per order | Sep 26, 2026 |
| 4 | Nutrisystem | People who want ready-made meals 5 or 7 days a week at a lower price per meal | At least 3.8% more loss than control at 3 months (2015 review); structured plans with an app and coaching support; 100+ menu items, according to the company | Individual meals from $1.99; specialty plans from $99 for new customers (promotion) | Sep 25, 2026 |
| 5 | Trilivy (formerly Optavia), Reset 5 and 1 | People who want a highly structured meal-replacement plan with a coach | 16-week trial: 5.7% average loss on 5 and 1 with coaching; plan designed for about 800 to 1,000 calories a day; very-low-calorie programs at least 4.0% more short-term loss (2015 review) | $384 to $480 per order, with or without autoship | Oct 6, 2026 |
| 6 | TOPS (Take Off Pounds Sensibly) | People on a tight budget who like peer support | Members who renewed after 1 year: 6.0% average loss; members renewing for 7 years: 8.3% (2015 study); nonprofit with weekly meetings in person or online since 1948 | $70 for the first year, then $60 and $48 a year | Oct 6, 2026 |
| 7 | Noom Weight | Self-guided app users who like psychology-based lessons | 2016 study of 35,921 app users: 77.9% reported losing weight, with no comparison group; daily 5 to 15 minute lessons, food and weight logging; a randomized trial is registered but its main results were not found | About $17.50 to $70 a month ($169 for the most common 4-month plan, billed up front) | Oct 6, 2026 |
Why the National Diabetes Prevention Program is number 1
The National DPP is the U.S. version of the lifestyle program tested in the Diabetes Prevention Program trial, published in the New England Journal of Medicine in 2002. That trial randomly assigned 3,234 adults with high blood sugar to a placebo pill, metformin or a lifestyle program aiming for at least 7% weight loss and 150 minutes of activity a week. Over an average of 2.8 years, the lifestyle program cut new cases of type 2 diabetes by 58% compared with placebo, and it worked better than metformin.
| Item | Value |
|---|---|
| Placebo | 11 |
| Metformin | 7.8 |
| Lifestyle program | 4.8 |
Average follow-up 2.8 years. The lifestyle program reduced incidence by 58% vs placebo; metformin by 31%.
Source: Diabetes Prevention Program Research Group, New England Journal of Medicine 2002 (3,234 adults) (checked on October 6, 2026)
Today the CDC recognizes organizations that deliver the program in person or online. It runs for one year: weekly one-hour sessions for the first six months and monthly sessions for the next six, led by a trained lifestyle coach, with group support. Real-world results are smaller than in the original trial but still meaningful: among 14,747 people in the program’s first four years, average weight loss was 4.2%, and 35.5% reached the 5% goal. Every extra session attended was linked with 0.3% more weight lost.
The National DPP at a glance
- 58%fewer new cases of type 2 diabetes than placebo in the original trialNEJM 2002
- 4.2%average weight loss among 14,747 participants in the first 4 yearsEly et al., Diabetes Care 2017
- $0cost for eligible people with Medicare Part BMedicare.gov
Checked on October 6, 2026
Who can join: the CDC’s program standards ask for adults 18 or older with a BMI of 25 or more (23 or more for Asian American adults) and a blood test or risk result showing prediabetes. Medicare’s version requires an A1c of 5.7% to 6.4% (or a fasting glucose of 110 to 125 mg/dL) within the past year, no diagnosis of diabetes or end-stage kidney disease, and costs nothing if you qualify. Outside Medicare, the cost depends on the organization and your insurance or employer. If you have insulin resistance or have been told your blood sugar is borderline, it is the first program to ask about. Our guide to type 2 diabetes and weight explains why even 5% matters.
WeightWatchers and Jenny Craig: the best-studied commercial programs
WeightWatchers has more independent, year-long trials than any other commercial program. In a 2011 Lancet trial of 772 adults referred by family doctors in Australia, Germany and the UK, people given a free year of WeightWatchers lost 5.06 kg (about 11 lb), compared with 2.25 kg with standard care. In England’s WRAP trial of 1,267 adults, 52 weeks of the program led to 6.76 kg lost at one year, compared with 4.75 kg after 12 weeks and 3.26 kg with brief advice. The Core Program uses Points, an app and Workshops, and started at $12 a month on a 12-month plan when we checked. Its Med+ tier adds prescribing, which puts it outside this list.
Jenny Craig had the largest 12-month effect in the 2015 review, and a 2010 JAMA trial found 7.9% average loss at two years with its in-person program, which included free food and counseling. It ranks third rather than first among the commercial options because the company changed: the original business closed in 2023, and the brand now sells meals online with virtual coaching. That version has not been tested in its own trials, so we can’t assume the old results still apply.
Meal-based programs: Nutrisystem and Trilivy
Nutrisystem and Trilivy (still widely known as Optavia) both remove most food decisions, which helps some people a lot in the first months. Their evidence is shorter. Nutrisystem’s trials in the 2015 review ran about 3 months. Trilivy’s best-known trial, funded by its parent company Medifast, lasted 16 weeks: people on the 5 and 1 plan with a coach lost 5.7% on average, while a self-guided comparison group lost almost nothing, which makes the company’s “10 times more” claim look larger than it is. We place Nutrisystem above Trilivy because its results come from several trials pooled in an independent review, while Trilivy’s rest on one company-funded study. Both cost more than group or app programs once food is included, and both run on automatic shipments, so read the cancellation terms first.
Low-cost and app options: TOPS and Noom
TOPS is a nonprofit, peer-led program that says it opened in 1948. Researchers at the University of Colorado studied 207,469 people who joined between 2005 and 2011. Among the 74,629 who renewed after a year, average loss was 6.0%, and among the 2,289 who renewed for seven years in a row it was 8.3%. Those figures only include people who stayed, which flatters any program, and there is no randomized trial yet (one in older African American women is under way). Still, at $48 to $70 a year it is by far the cheapest structured option.
Noom Weight teaches habits through short daily psychology lessons, food logging and coaching. Its best-known published study looked back at 35,921 app users: 77.9% reported losing weight, but there was no comparison group and weights were self-reported, so it cannot show how much the app itself helped. A randomized trial was registered and its protocol published, but we could not find its main results as of 2026-10-06. Noom Weight is the right fit for some people, especially those who want a self-paced app, but on evidence it sits last. Noom Med, its prescribing tier, is not ranked here. If you only want an app for logging, our best weight-loss apps list compares free and paid options.
| Item | Low | High |
|---|---|---|
| TOPS (annual dues divided by 12) | $4 USD | $5.83 USD |
| WeightWatchers Core (12-month plan, from) | $12 USD | $12 USD |
| Noom Weight (annual to month-to-month) | $17.50 USD | $70 USD |
TOPS: $48 to $70 a year. WeightWatchers Core: from $12 a month on a 12-month plan. Noom: $209 a year to $70 month-to-month, billed up front. Meal programs are not shown because food is included in their prices.
Source: TOPS, WeightWatchers and Noom pricing pages (checked on October 6, 2026)
Evidence and cost in one table
| Program | Best evidence | Longest results | Cost basis |
|---|---|---|---|
| National DPP | Large randomized trial plus national data | 2.8 years (trial) | Varies; $0 with Medicare if eligible |
| WeightWatchers | Several independent randomized trials | 12 months | Membership |
| Jenny Craig | Randomized trials of the older program | 2 years | Food plus membership |
| Nutrisystem | Short randomized trials | About 3 months | Food |
| Trilivy (Optavia) | One company-funded randomized trial | 16 weeks | Food |
| TOPS | Retrospective member data, completers only | 7 years | Annual dues |
| Noom Weight | Observational, self-reported | Varied | Subscription |
How to choose the right program for you
Choosing a program in four steps
- Check your health firstIf you have prediabetes, ask about the National DPP. If you take diabetes or blood pressure medicines, plan diet changes with your clinician.
- Pick a style you can keepGroup meetings, an app or delivered food. The best program is the one you will use for a year.
- Add up the full costMembership, food, shipping and the renewal price, not just the first-month offer.
- Read the cancellation termsNote the commitment length, renewal date and any charge-back for canceling early.
Our checklist of 12 questions to ask any weight-loss program turns these steps into a printable list, and WW vs Noom puts the two best-known app programs side by side. If you are not sure whether a commercial or a medical route fits, medical vs commercial programs compares them, and Find My Options narrows the choices in a few questions.
What no program can do
Even the best programs produce modest average losses, usually around 3% to 7% of body weight at one year, and results vary widely from person to person. No program guarantees a number, and weight tends to creep back after support ends, which is why the plan for keeping weight off matters as much as the program you start with. For people with obesity-related health conditions, a program can be combined with medical treatment: our telehealth programs comparison covers services that prescribe (we compare those, but never rank them), and the lose weight hub shows every option.
Records in this article
WeightWatchers (WW): Points, Med+ clinic and costsCommercial · Can prescribe
Jenny Craig: program status, food and costMeal delivery
Nutrisystem: plans, food and costMeal delivery
Optavia (now Trilivy): the Fuelings plan, evidence and costsMeal delivery
Noom: psychology-based program and Noom MedApp · Can prescribe
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- Do my blood sugar results mean I could join a National Diabetes Prevention Program?
- Is a reduced-calorie or meal-replacement plan safe with the medicines I take?
- Which kind of program, group, app or meal-based, fits my health and schedule best?
- Does my insurance or employer cover any weight-loss program?
- How should we check progress and plan for maintenance after the program ends?
Frequently asked questions
What is the best weight-loss program without medication?
By published evidence, a CDC-recognized National Diabetes Prevention Program ranks first for people with prediabetes, and WeightWatchers ranks first among commercial programs open to everyone, with several independent year-long trials.
Is the National Diabetes Prevention Program free?
It is free for people with Medicare Part B who meet the requirements (including an A1c of 5.7% to 6.4% and a BMI of 25 or more, or 23 or more for Asian American adults). Otherwise the cost depends on the organization and your insurer or employer.
How much weight do people lose on commercial programs?
In trials, average losses were modest, roughly 3% to 7% of body weight at one year, with wide differences between people. Programs with regular sessions for a full year tended to do better.
Is Noom or WeightWatchers better?
WeightWatchers has more independent randomized evidence; Noom's published data are observational. The better fit depends on whether you prefer group Workshops and Points or self-paced psychology lessons. Our WW vs Noom comparison goes through both.
Why are telehealth programs like WW Med+ or Noom Med not on this list?
They prescribe medication, which makes them medical services. InstaTuck never ranks prescribers; we compare them side by side in our telehealth programs comparison instead.
References
- Gudzune KA, Doshi RS, Mehta AK, et al.. Efficacy of commercial weight-loss programs: an updated systematic review. Annals of Internal Medicine, 2015. doi:10.7326/M14-2238 · PMID 25844997 (accessed October 7, 2026) Meta-analysis
- Diabetes Prevention Program Research Group. Reduction in the Incidence of Type 2 Diabetes with Lifestyle Intervention or Metformin. New England Journal of Medicine, 2002. doi:10.1056/NEJMoa012512 · PMID 11832527 (accessed October 7, 2026) Randomized trial
- Ely EK, Gruss SM, Luman ET, et al.. A National Effort to Prevent Type 2 Diabetes: Participant-Level Evaluation of CDC’s National Diabetes Prevention Program. Diabetes Care, 2017. doi:10.2337/dc16-2099 · PMID 28500215 (accessed October 7, 2026) Other
- National Diabetes Prevention Program: details about the program. Centers for Disease Control and Prevention. (accessed October 6, 2026) Government page
- CDC Diabetes Prevention Recognition Program: Standards and Operating Procedures (participant eligibility). Centers for Disease Control and Prevention, 2024. (accessed October 6, 2026) Government page
- Medicare Diabetes Prevention Program. Medicare.gov (CMS). (accessed October 7, 2026) Government page
- Weight Loss to Prevent Obesity-Related Morbidity and Mortality in Adults: Behavioral Interventions. U.S. Preventive Services Task Force, 2018. (accessed October 7, 2026) Guideline
- Jebb SA, Ahern AL, Olson AD, et al.. Primary care referral to a commercial provider for weight loss treatment versus standard care: a randomised controlled trial. The Lancet, 2011. doi:10.1016/S0140-6736(11)61344-5 · PMID 21906798 (accessed October 7, 2026) Randomized trial
- Ahern AL, Wheeler GM, Aveyard P, et al.. Extended and standard duration weight-loss programme referrals for adults in primary care (WRAP): a randomised controlled trial. The Lancet, 2017. doi:10.1016/S0140-6736(17)30647-5 · PMID 28478041 (accessed October 6, 2026) Randomized trial
- Core+. WW International, Inc.. (accessed October 6, 2026) Other
- Rock CL, Flatt SW, Sherwood NE, et al.. Effect of a free prepared meal and incentivized weight loss program on weight loss and weight loss maintenance in obese and overweight women. JAMA, 2010. doi:10.1001/jama.2010.1503 · PMID 20935338 · NCT00640900 (accessed October 7, 2026) Randomized trial
- Jenny Craig homepage (capture of jennycraig.com, 2026-09-26). JCR Holdings II, LLC, via Internet Archive, 2026. (accessed October 6, 2026) Other
- Jenny Craig Program page (capture, 2026-06-08). JCR Holdings II, LLC, via Internet Archive, 2026. (accessed October 6, 2026) Other
- Nutrisystem homepage (capture, 2026-09-25). Nutrisystem, LLC, via Internet Archive, 2026. (accessed October 6, 2026) Other
- Nutrisystem Program page (capture, 2026-06-12). Nutrisystem, LLC, via Internet Archive, 2026. (accessed October 6, 2026) Other
- Arterburn LM, Coleman CD, Kiel J, et al.. Randomized controlled trial assessing two commercial weight loss programs in adults with overweight or obesity. Obesity Science and Practice, 2019. doi:10.1002/osp4.312 · PMID 30820327 (accessed October 6, 2026) Randomized trial
- Compare Trilivy meal plans: Reset, Refine and Renew. Trilivy Health (Medifast, Inc.). (accessed October 6, 2026) Other
- TOPS Club (Take Off Pounds Sensibly). TOPS Club, Inc.. (accessed October 6, 2026) Other
- Mitchell NS, Polsky S, Catenacci VA, Furniss AL, Prochazka AV. Up to 7 Years of Sustained Weight Loss for Weight-Loss Program Completers. American Journal of Preventive Medicine, 2015. doi:10.1016/j.amepre.2015.02.011 · PMID 26033350 (accessed October 6, 2026) Other
- Mitchell NS, North R, Hung A, et al.. Changes in weight and physical function for older African American women in Take Off Pounds Sensibly (TOPS): study protocol for a randomized clinical trial. Contemporary Clinical Trials, 2025. doi:10.1016/j.cct.2025.107815 · PMID 39832532 (accessed October 6, 2026) Other
- How much does Noom Weight cost in 2026?. Noom, Inc., 2026. (accessed October 7, 2026) Other
- Chin SO, Keum C, Woo J, et al.. Successful weight reduction and maintenance by using a smartphone application in those with overweight and obesity. Scientific Reports, 2016. doi:10.1038/srep34563 · PMID 27819345 (accessed October 6, 2026) Other
- Noom diet app $62 million class action settlement receives final court approval. Wittels McInturff Palikovic, 2022. (accessed October 6, 2026) News (reported facts only)
Facts checked on October 6, 2026
Educational information, not medical advice. Talk with a qualified healthcare professional about your own situation. In an emergency call 911.
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