Please select the eligibility criteria that correspond to the clinical trial below.
Title: Low Intensity Weight Loss for Young Adults
Brief Summary: This is a 3-arm randomized controlled trial to test the efficacy of three novel motivational approaches to weight loss with 18-25 year olds. Participants will be 18-25 year olds with a BMI of 25-45 kg/m2, randomized to: 1) Behavioral Weight Loss (BWL), 2) BWL + Autonomous Motivation (BWL+Aut) or 3) BWL + Extrinsic Motivation (BWL+Ext). All arms will receive a 6-month behavioral weight loss intervention, followed by a 6-month no-treatment follow up period.


Options:
A: Inclusion Criteria:

* Aged 18-65
* BMI equal to or greater than 27 kg/m2
* Willing to commit the necessary time and effort to the study,
* Employed by a large employer in Leeds (and expects to continue to be employed there for the next 12 months),
* Able to read and write in English,
* Able to access the internet,
* Willing to be randomised to one of three groups.

Exclusion Criteria:

* Pregnant, planning a pregnancy within next 12 months, lactating
* Has had surgery for weight loss
* Taking the medication sertraline (due to associations with weight gain)
* Taking anti-obesity medications or medications for diabetes
B: Inclusion Criteria:

* Between 18-25 years of age. Body Mass Index (BMI) between 25 and 45 kg/m2. Men and women will be recruited. All race and ethnic groups will be recruited.

Exclusion Criteria:

* Report an uncontrolled medical condition that may pose a safety issue given the recommendations for diet and unsupervised physical activity in the current study (e.g., uncontrolled hypertension). The investigators will refer individuals who have blood pressure levels \>140 / 90 mmHg as part of baseline screening to their physician and exclude them from this study unless their treating physician determines s/he is a suitable candidate based on the specifics of the protocol and provides written medical consent for participation. Participants who report a history of or current treatment for medical conditions (e.g., hypertension, diabetes) will be asked to obtain MD consent to participate.
* Other health problems or medications which may influence the ability to walk for physical activity or be associated with unintentional weight change, including cancer treatment within the past 5 years or tuberculosis.
* Report a heart condition, chest pain during periods of activity or rest, or loss of consciousness on the Physical Activity Readiness Questionnaire (PAR-Q), which will be administered during prescreen. Individuals endorsing joint problems, prescription medication usage, or other medical conditions that could limit exercise will be required to obtain written physician consent to participate.
* Report a history of, or current diagnosis of anorexia nervosa or bulimia nervosa, or any current compensatory behaviors (e.g., vomiting, laxative use, excessive exercise).
* Current symptoms of alcohol or substance dependence.
* Planning to move from the area within the study period.
* Currently pregnant, pregnant within the past 6 months, currently breastfeeding or planning to become pregnant within the next 12 months.
* Hospitalization for depression or other psychiatric disorder within the past 12 months. History of psychotic disorder or bipolar disorder.
* Another member of the household is a participant or staff member on this study.
* Participation in another research study that may interfere with this study.
* Currently participating in a weight loss program and/or taking weight loss medication or lost \> 5% of body weight during the past 3 months.
* Failure to complete the screening appointments.
C: Inclusion Criteria:

* BMI 30-45
* Weight stable
* Own a Smartphone and be willing to install our Smartphone app
* Willing to conduct video conference calls with study staff

Exclusion Criteria:

* Enrolled in any formal weight loss program
* Taking anti-obesity medications
* Not taking medications that may cause weight gain
* Unstable medical conditions
* Diabetes requiring insulin supplementation
* Crohn's Disease
* Diagnosis of obstructive sleep apnea requiring intervention (i.e., CPAP)
* Assistive devices for mobility
* Hospitalizations for a psychiatric disorder within the past 5 years
* Cardiovascular disease symptoms while performing moderate intensity exercise
* Pregnancy, trying to get pregnant, or lactating.
* Bulimia or binge eating disorder
* Reports of active suicidal ideation
* Current substance abuse or dependence besides nicotine dependence
D: Inclusion Criteria:

* Participants must be interested in the Noom app
* BMI \> 27 kg/m2
* Ages of 18 and 60 at entry to the study
* Speak English

Exclusion Criteria:

* Contraindication to smartphone use (e.g., seizures from prior smartphone use, do not own a smartphone)
* Acute suicide risk
* Pregnant or planning to become pregnant during the study
* Current Noom use

Answer: B