Please select the eligibility criteria that correspond to the clinical trial below.
Title: The Dietary Intervention Examining Tracking With Mobile Devices Study
Brief Summary: The purpose of the study is to test the effectiveness of two different weight loss interventions. Both of these interventions will provide weight loss information through twice weekly audio podcasts. In addition to the podcasts, participants will be asked to track their diet using either a wearable device on their wrist or through an app on their smartphone.


Options:
A: Inclusion Criteria:

* Must be between 18-65 years old
* Own and use a smartphone and/or a tablet with a data plan
* BMI must be between 25-49.9 kg/m2
* Must be willing to reduce caloric intake and increase physical activity
* Not currently participating in a weight loss study in a weight loss study that involved podcasts

Exclusion Criteria:

* Over the age of 65 years old
* Currently participating in a weight loss program
* Has lost more than 10 pounds in the past 6 months
* Diagnosed with stroke or heart attack
* Diagnosed with diabetes that is controlled using medication
B: Inclusion Criteria (parent):

* Currently age 21-55.
* Body mass index (BMI) of 25-50 kg/m².
* Have one child between the ages of 2-12.
* Own an iPhone running at least iOS11 with a data and text messaging plan.
* Have the ability to read, write, and speak English.

Inclusion Criteria (child):

* Currently age 2-12.

Exclusion Criteria (parent):

* Lost more than 10 pounds in the last 6 months.
* Currently participating in another nutrition or weight loss program.
* Currently meeting exercise recommendations of 150 minutes per week of moderate-to-vigorous physical activity.
* Currently pregnant or breastfeeding, pregnant within the past 6 months, or planning to become pregnant within the next 6 months.
* Planning to relocate in the next 8 months.
* Will be out of town for 2 weeks or more in the next 8 months.
* Cannot attend two visits at the UNC Weight Research Program clinic.
* Pre-existing medical condition(s) that preclude adherence to an unsupervised exercise program, as determined by items endorsed on the PAR-Q (Physical Activity Readiness Questionnaire).
* Treatment of diabetes with insulin or oral medications that may cause hypoglycemia.
* History of clinically diagnosed eating disorder.
* Diagnosis of schizophrenia or bipolar disorder.
* Hospitalization for a psychiatric diagnosis within the last year.
* Report a past diagnosis of or current symptoms of alcohol or substance dependence.
* Another member of the household (family member or roommate) is a participant or staff member in this study.
C: Inclusion Criteria:

* ages 21-65 years old
* Body Mass Index (BMI) 25-45 kg/m2
* interested in losing weight through dietary change
* current use of iPhone or Android smartphone
* current use of email address
* has daily access to a bathroom scale
* no recent weight loss (≥10 lbs) in the past 6 months
* able to read and write in English
* able to attend 3 in-person evaluation visits at Duke University in Durham, North Carolina over a 3-month period

Exclusion Criteria:

* current participation in another weight loss treatment
* currently pregnant or planning to become pregnant within study period, or \< 1 year post-partum
* history of cardiovascular event, eating disorder, diabetes mellitus, hypothyroidism, cancer, end stage renal disease
* current uncontrolled hypertension
* use of the MyFitnessPal app to track food in the past 6 months
* Former or planned bariatric surgery
* current use of medication (e.g., lithium, steroids, anti-psychotics)
* use of weight loss medication in past 6 months
* profound cognitive, developmental, or psychiatric disorders or recent hospitalization in a psychiatric facility
D: Inclusion Criteria:

* Age 18 to 35 years
* Intending to be available for a 24 month intervention
* Affiliated with either University of California, San Diego (UCSD), San Diego State University (SDSU), or California State University, San Marcos (CSUSM) as a student, faculty, or staff
* Willing and able to use social media
* Willing and able to use a smartphone and text messaging
* Willing and able to use the wearable, scale, and corresponding app
* Willing and able to attend measurement visits over the 2 year intervention
* Willing and able to engage in moderate to vigorous physical activity
* Overweight or obese, but not severely obese (25 \>= BMI \< 40 kg/m2)

Exclusion Criteria:

* Any comorbidities of obesity that require a clinical referral including eating disorders, pseudotumor cerebri, sleep apnea or hypoventilation syndrome, orthopedic problems, and meeting American Diabetes Association criteria for diabetes
* Psychiatric or medical conditions that prohibit compliance with the study protocol
* Had a cardiovascular event (heart attack, stroke, episode of heart failure, or revascularization procedure) within the last 6 months
* Currently being treated for a malignancy (other than non-melanoma skin cancer)
* Currently being treated and/or have an eating disorder
* Planning to have a weight loss surgery in the next 24 months (e.g., liposuction, lap band, gastric bypass)
* Pregnant, gave birth within the last 6 months, currently lactating or breastfeeding within the last 3 months, or actively planning pregnancy within the next 24 months
* Prescribed physical activity and/or dietary changes
* Prescribed medications that alter weight
* Enrolled in or planning to enroll in a weight loss program during the study period
* Lost more than 15 pounds within the past 3 months

Answer: A