Research

Evidence-based science.


Noom is grounded in science; it is at the heart of everything we do. We have over 25 peer-reviewed scientific articles that inform users, practitioners, scientists, and the public about how our methods work and how effective they are. Our team of behavioral health experts have PhDs and masters degrees in psychology, integrative medicine, neuroscience, and statistics. We make scientific discoveries about all aspects of behavior change, making the world a healthier place. Our research spans many different areas of health, including oncology, diabetes prevention, hypertension, diabetes management, and more.

Recent publications

Here are some of our most recent peer-reviewed scientific journal articles.

Psychosocial Characteristics by Weight Loss and Engagement in a Digital Intervention Supporting Self-Management of Weight

The most successful Noom users (in terms of weight loss and engagement) had the highest mental health quality of life, work-life balance, and flourishing (a sense of meaning and purpose in life). The higher users’ anxiety, the less weight they lost.

Postpartum Weight Retention: A Retrospective Data Analysis Measuring Weight Loss and Program Engagement with a Mobile Health Program

New moms on Noom lost 3.94 kg (8.69 pounds) by week 16 and 4.08 kg (8.99 pounds) by week 24. 80% decreased in BMI by more than 2 units.

Mobile Delivery of the Diabetes Prevention Program in People With Prediabetes: Randomized Controlled Trial

This randomized controlled trial showed that Noom’s Diabetes Prevention Program (DPP) resulted in significant weight and BMI reduction at 6 months and 12 months.

Relationship Between Age and Weight Loss in Noom: Quasi-Experimental Study

Noom’s Healthy Weight and Diabetes Prevention Program both resulted in significant weight loss. Healthy Weight users lost 6.24 kg (5.2% body weight) and DPP users lost 5.66 kg (8.1% body weight) by week 52.

More publications

All of our 25+ peer-reviewed scientific articles in one info-packed place. Click on the links below to read summaries and download our growing list of peer-reviewed publications.

TitleYearSummary
Adherence to healthy food choices during the COVID-19 pandemic in a U.S. population attempting to lose weight2021When COVID-19 started, Noom users ate less fruit and vegetables, but more red meat and starchy vegetables, compared to when COVID-19 began.
Psychosocial Characteristics by Weight Loss and Engagement in a Digital Intervention Supporting Self-Management of Weight2021The most successful Noom users (in terms of weight loss and engagement) had the highest mental health quality of life, work-life balance, and flourishing (a sense of meaning and purpose in life). The higher users’ anxiety, the less weight they lost.
Postpartum Weight Retention: A Retrospective Data Analysis Measuring Weight Loss and Program Engagement with a Mobile Health Program2021New moms on Noom lost 3.94 kg (8.69 pounds) by week 16 and 4.08 kg (8.99 pounds) by week 24. 80% decreased in BMI by more than 2 units.
Clinical Efficacy and Plausibility of a Smartphone‐based Integrated Online Real‐time Diabetes Care System via Glucose and Diet Data Management: A Pilot Study202040 patients with type 2 diabetes were randomly assigned to use Noom or to a control group. Significantly more patients in the Noom group achieved target A1C levels compared to the control group.
Understanding Time Series Patterns of Weight and Meal History Reports in Mobile Weight Loss Intervention Programs: Data-Driven Analysis2020Time series analysis was used to look at relationships between logging and weight loss. Logging was associated with weight loss for women but not for men.
The Effectiveness of a Monetary Reimbursement Model for Weight Reduction via a Smartphone Application – A Preliminary Retrospective Study2020In this study, participants were given a monetary reward if they logged their food three times a day. Those who logged three times a day during Noom lost significantly more weight and read more articles and exercised more compared to those who did not log three times a day.
Mobile Delivery of the Diabetes Prevention Program in People with Prediabetes: A Randomized Controlled Trial2020This randomized controlled trial showed that Noom’s Diabetes Prevention Program (DPP) resulted in significant weight and BMI reduction at 6 months and 12 months.
Relationship Between Age and Weight Loss in Noom: Quasi-Experimental Study2020Noom’s Healthy Weight and Diabetes Prevention Program both resulted in significant weight loss. Healthy Weight users lost 6.24 kg (5.2% body weight) and DPP users lost 5.66 kg (8.1% body weight) by week 52.
Randomized Controlled Trial Comparing Health Coach-Delivered Smartphone-Guided Self-Help With Standard Care for Adults With Binge Eating2020Noom plus cognitive behavioral therapy reduced binge eating days and improved remission in adults with binge eating compared to standard care.
Multi-dimensional cognitive behavior therapy for obesity applied by a clinical psychologist using a digital platform: an open-label, randomized controlled trial2020Noom with digital cognitive behavioral therapy resulted in significant weight, fat, leptin and insulin resistance, emotional eating, snack calorie intake improvements compared to a control group.
Effect of mHealth With Offline Antiobesity Treatment in a Community-Based Weight Management Program: Cross-Sectional Study2020In conjunction with local healthcare treatment, Noom reduced body weight by 2.73 kg, decreased fat mass by 2.65 kg, and significantly increased metabolic equivalent of task (MET) after 8 weeks.
Enabling Self-management of a Chronic Condition through Patient-centered Coaching: A Case of an mHealth Diabetes Prevention Program for Older Adults2019A qualitative study found that coaches trigger reflections on users’ habits, jointly help users determine measurable health goals, facilitate self-evaluations on recent behavior change, and tailor programs to adapt to users’ lifestyle and health status.
Changes in Weight and Health-Related Behavior Using Smartphone Applications in Patients With Colorectal Polyps2019In this randomized controlled trial, Noom users with colorectal polyps (a precancerous growths in the colon) lost significantly more weight than individuals who did not use Noom. Engaging with the Noom app significantly increased exercise.
Effects of Smartphone Coaching Intervention on Dietary Intake for Bariatric Surgery Candidates: A Pilot Randomized Controlled Trial2019Compared to a control condition, only Noom reduced empty calorie consumption, and total kcal and total fat intake showed larger reductions for Noom  in pre-bariatric surgery patients.
Usefulness of a Novel Mobile Diabetes Prevention Program Delivery Platform With Human Coaching:65-Week Observational Follow-Up2018Significant weight loss in pre-diabetic Noom users was sustained to 65 weeks, weight loss ranged from 6.15% to 8.98% of body weight.
Complementary Support from Facilitators and Peers for Promoting mHealth Engagement and Weight Loss2017Perceived support from groups significantly promoted Noom users’ engagement and weight loss.
Efficacy of a mobile hypertension prevention delivery platform with human coaching2017A Noom hypertension program significantly improved weight by 3.05 kg, diastolic blood pressure by 5.06 mm Hg, and hypertension category at 24 weeks.
Effectiveness of a Smartphone Application for the Management of Metabolic Syndrome Components Focusing on Weight Loss: A Preliminary Study2017Metabolic risk factors were improved by 15 weeks, and significant weight loss was sustained at one year.
Mobile But Connected: Harnessing the Power of Self-Efficacy and Group Support for Weight Loss Success through mHealth Intervention.2017Self-efficacy was positively associated with food logging, which was positively associated with weight loss success. Social support received from the Noom group was related to an increase in food logging and group participation, and group participation was positively associated with weight loss. 
Adherence as a predictor of weight loss in a commonly used smartphone application2017BMI was reduced in Noom users by 2.59 kg/m2. Higher adherence led to higher weight loss.
Effects of climatic variables on weight loss: a global analysis2017There was a direct and independent impact of meteorological conditions on intentional weight loss efforts on a global scale.
Randomized Controlled Trial Comparing Smartphone Assisted Versus Traditional Guided Self-Help for Adults with Binge Eating2017Noom paired with cognitive behavioral therapy for binge eating significantly reduced bulimic episodes, greater meal and snack adherence, and regular meal adherence compared to traditional guided self-help. 
Weight loss efficacy of a novel mobile Diabetes Prevention Program delivery platform with human coaching2016Pre-diabetic Noom users lost significant amounts of weight at 16 weeks (5.65-6.33%) and 24 weeks (6.58-7.50%).
Successful weight reduction and maintenance by using a smartphone application in those with overweight and obesity.201677.9% of over 35,000 participants lost weight while using Noom.

Participate in Research!

We are currently running studies that explore all aspects of behavior change to make the world a healthier place. Click “Participate” below to see if you’re eligible to participate! We will contact you if you are eligible. Have questions? Please email research@noom.com.

Weight Loss and Life Quality with Oura Ring

We are going to run a study to examine weight loss and quality of life as measured objectively by an Oura Ring, a wearable device. We are looking for participants 18-65 years old with overweight or obesity who will continuously wear an Oura Ring. [$70 for 4 months, remote/online.]

Long-term Weight Loss

Most people have difficulty maintaining weight loss long-term. We are running a study to evaluate long-term weight loss and other outcomes (e.g., quality of life). We are looking for participants 18-60 years old with a BMI over 27 kg/m2 in this 2.5-year fully online study. [$175 for 2.5 years, remote/online.]

Brain Activity 

Developing habits and cognitive behavioral therapy improve cognitive performance in recent studies. In this study, we will see if and how Noom improves cognitive performance and brain activity. We are looking for participants 18-65 years old in the NYC area. [$450 for 4 months, 4 in-person sessions.]

Relationship with Food

[ENROLLMENT IS FULL]

Weight loss interventions can improve eating behaviors, but what about your relationship with food? In this study, we will explore if and how Noom creates healthy relationships towards food.

[ENROLLMENT IS FULL]

Research on Diabetes Prevention

Here are more details on our research on The Noom Diabetes Prevention Program (DPP), which was the first virtual DPP to receive full CDC recognition.

Weight loss efficacy of a novel mobile Diabetes Prevention Program delivery platform with human coaching

  1. – Published in the British Medical Journal Open Diabetes Research and Care (2016)
  2. – Evaluated the weight loss efficacy of a Noom DPP in 43 overweight or obese adult participants with a diagnosis of prediabetes. 
  3. – Weight loss at 16 and 24 weeks was significant, with 56% of program starters (read 1 or more lessons per week on 4 or more core weeks) and 64% of program completers (read 9 or more lessons per week on core weeks) losing over 5% body weight at 24 weeks. Mean weight loss at 24 weeks was 6.58% in starters and 7.5% in completers. 
  4. – Participants were highly engaged, with 84% of the sample completing 9 lessons or more (CDC standard)
  5. – In-app actions related to self-monitoring (e.g., weekly weigh-ins and number of meals logged) significantly predicted weight loss. Group posts were also associated with percent weight loss.

Usefulness of a Novel Mobile Diabetes Prevention Program Delivery Platform With Human Coaching: 65-Week Observational Follow-Up

  1. – Published in the Journal of Internet Medical Research (JMIR) mHealth and uHealth (2018)
  2. – This is a follow-up of the study above on results from a 24-week DPP fully mobile pilot intervention, extending previous findings to evaluate weight loss efficacy of core and maintenance DPP interventions at 65 weeks from baseline.
  3. – At 65 weeks, mean weight loss was 6.15% in starters (read 1 or more lessons per week on 4 or more core weeks), 7.36% in completers (read 9 or more lessons per week on core weeks), and 8.98% in maintenance completers (did any action in postcore weeks). 44% of starters, 53% of completers, and 66% of maintenance completers lost at least 5% of their body weight.
  4. – In maintenance completers, mean body weight decreased significantly by 7.54 kg from baseline to 24 weeks and was sustained over time by 8.77 kg from baseline to 65 weeks.
  5. – Participants were highly engaged with 80% of the sample completing 9 lessons or more and 69% completing the maintenance phase.
  6. – Meal logging and group posts significantly predicted greater weight loss

Enabling Self-management of a Chronic Condition through Patient-centered Coaching: A Case of an mHealth Diabetes Prevention Program for Older Adults

  1. – Published in Health Communication (2019)
  2. – DPP coaches used several patient-centered strategies for enacting sustainable behavior change:
  3. ——– Trigger reflections on users’ routinized habits
  4. ——– Jointly determining a measurable health goal
  5. ——– Facilitating self-evaluations on recent behavior change
  6. ——– Tailoring programs to adapt to users’ lifestyle or health status
  7. – Coaches’ communication patterns demonstrated a high level of situational understanding of user routines

Mobile Delivery of the Diabetes Prevention Program in People with Prediabetes: A Randomized Controlled Trial

  1. – Published in the Journal of Internet Medical Research (JMIR) mHealth and uHealth (2020)
  2. – Examined the long-term weight loss and glycemic efficacy (hemoglobin A1c) of Noom’s DPP compared to a usual care control group
  3. ——– DPP core had 20 weeks of core content and up to 52 weeks for the maintenance phase
  4. – 202 participants were assigned to Noom DPP (n=101) or the control group (n=99)
  5. – At 6 months, weight loss was greater among the intervention group (-3.69%) and intervention completers (-5.59%) compared to the control group (-0.15%).
  6. – At 12 months, weight loss was greater among the intervention group (-2.54%) and the intervention completers (-4.66%) compared to the control group (+0.33%).
  7. ——– Weight change at 12 months was predicted by more frequent weigh ins, logging more steps, and more frequent meal logging
  8. – There were small, but significant decreases in HbA1c at 6 and 12 months for each group
  9. ——– 6 months: intervention group (-0.15%), intervention completers (-0.17%), control group (-0.17%)
  10. ——– 12 months: intervention group (-0.23%), intervention completers (-0.28%), control group (-0.16%)

Relationship Between Age and Weight Loss in Noom: Quasi-Experimental Study

  1. Published in JMIR Diabetes (2020)
  2. Examined weight loss of middle-age and older adults
  3. Adults (median age = 51.0) lost 5.7% of their body weight at week 16 and 8.1% of their body weight at week 52

Scientific Advisory Board

Our scientific advisory board is composed of world-renowned experts in health behavior and outcomes.

Dr. Wing is a renowned expert on long-term weight management and diabetes prevention, and has published over 700 peer-reviewed scientific articles. She led development of the Diabetes Prevention Program, the gold standard lifestyle intervention for diabetes prevention. She is Chairman of the Look AHEAD trial, a long-term NIH clinical trial of weight loss for type 2 diabetes.
Dr. Wilhelm’s groundbreaking research focuses on using technology to improve mental health. Her expertise lies in obsessive-compulsive and related disorders, cognitive-behavioral therapy, as well as mental health more broadly. She has published more than 200 peer-reviewed articles and reviews, and served as President for the Association for Behavioral and Cognitive Therapies (ABCT).
Dr. Steptoe is a leading expert in health and aging, the psychobiology of health and disease, and health behavior research. He has published over 700 peer-reviewed articles and authored or edited 20 books. He served as the President of the International Society of Behavioral Medicine and is the founding editor of the British Journal of Health Psychology. 
Dr. Marrero is a recognized expert in early diabetes intervention, community health programs, and medication adherence. He significantly advanced development of the Diabetes Prevention Program, the gold standard lifestyle intervention for diabetes prevention, as well as the TRIAD study, which examined diabetes treatment in managed-care settings. He served as President for Healthcare and Education for the American Diabetes Association. 
Dr. Hildebrandt’s extensive expertise lies in eating and weight disorders, as well as obesity more broadly. He has published over 100 peer-reviewed articles and 50 presentations on body image, eating disorders, and obesity, among others. His research uses a variety of methods, such as novel, cutting edge techniques to provide effective interventions to patients across all ages.

The latest insights.


The latest data and science on how behavior change can improve health, brought to you by Noom’s research scientists.

Analysis

When we’re not working on scientific publications, we explore interesting data trends and learn fun insights from our users. Want to know how food consumption changed around the latest holiday, or the trending new snacks this year? Check back often for our latest analyses.

How Noom groups and coaches help support users’ mental health: A look at two peer-reviewed studies

How Noomers around the world are dealing with COVID fatigue

Science Spotlight

Can sense of smell impact health and weight? 
Cell Metabolism, 2017

A recent study showed that mice who have lost their sense of smell had faster metabolism, better fat-burning and lower obesity than mice with normal noses.

What’s going on? Olfactory neurons signal to fat tissue and promote fat build up

What does this mean? This study was in mice, too early to say whether you should start holding your nose while eating lunch. However, it does suggest that smell isn’t just about enjoying your meal, it can also trigger your body to build up fat stores.

Contact Us

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