Please select the eligibility criteria that correspond to the clinical trial below.
Title: Effects of Macronutrient Relations on Body Weight, Body Composition, and Cardiovascular Risk Markers in Overweight Patients Attending a Telemedically Guided Weight Loss Program
Brief Summary: The burden of overweight and obesity has dramatically increased during the last decades. High carbohydrate intake, particularly refined carbohydrates, probably increase the risk of obesity, type 2 diabetes, and metabolic syndrome. There is evidence that energy-restricted low-carbohydrate diets show greater weight loss and better improvement of cardiovascular risk markers compared to energy-restricted low-fat diets. Beside macronutrient relations, efficacy of weight loss programs depends on care and control. The investigators aim to investigate whether or not a carbohydrate-restricted telemedically guided weight loss program results in a more pronounced weight loss and influences metabolic risk markers more beneficial than a fat-restricted diet.


Options:
A: Inclusion Criteria:

* age 18-70 years
* body mass index \> 27 kg/m2

Exclusion Criteria:

* history of cardiovascular symptomatology
* cholelithiasis
* urolithiasis
* insulin dependent diabetes
* pacemaker implantation
* pregnancy
* lactation
* vegetarianism
B: Inclusion Criteria:

* Age 45+ yrs.
* BMI of \>30 kg/m2
* Body weight \<495 lbs.
* Normal blood chemistries
* Normal renal function
* Primary care physician acknowledgement
* Non-Vegetarian
* Mild to moderate movement impairment

Exclusion Criteria:

* Body weight \>495 pounds.
* Current smoker.
* Presence of unstable, acutely symptomatic, or life-limiting illness.
* Positive screen for dementia using Mini-Cog evaluation tool.
* Neurological conditions causing functional or cognitive impairments.
* History of significant weight instability (defined as \> 10 pounds weight gain or loss over 6 months prior to study participation).
* Unwillingness or inability to be randomized to any one of two intervention groups, submit to all study testing or continuously participate in a randomly assigned lifestyle intervention program for six months.
* Inability to walk independently.
* Bilateral hip replacements.
* Unable to give consent.
* Unable to complete written recording forms including journals of eating and exercise behaviors.
* Current use of the following medications: monoamine oxidase inhibitors, prescription weight loss medications.
* Primary Care Physician advises against participation.
C: Inclusion Criteria:

* Men or women age 30-65,
* BMI in the range 28-35 kg/m2 for women and 28-40kg/m2 for men.
* At least one of the following components of the metabolic syndrome; fasting triglycerides \> 1,7, fasting glucose 6,0-6,9, HDL-cholesterol \<1,03 (males) or \<1,29 (females), Blood pressure \>130/85 (with or without treatment), diet-treated diabetes mellitus or drug treated hypertension.
* Stable weight range of 4 kg or less the last 12 weeks,
* No major change in physical activity the last 12 weeks

Exclusion Criteria:

* Any symptomatic cardiovascular disease
* Diabetes requiring drug treatment
* Currently on special diet
* Hepatic/renal dysfunction
* Hypothyroidism (unstable)
* GI disorder impairing compliance with diet recommendation,
* History of unstable psychiatric or medical disorder,
* Need of lipid lowering drug,
* Alcohol or drug abuse,
* Participation in drug trial the last 30 days,
* Use of drugs for weight reduction last 12 weeks, pregnancy or planned pregnancy,
* Obesity of known endocrine origin, history of obesity surgery,
* Uncontrolled hypertension (\>160/100),
* Previous participation in \>3 weight reduction programs, or within last 12 months,
* Not willing to be randomized,
* Individual judged to be unable to follow instructions and procedures of the study
D: Inclusion Criteria:

* Self-identify as African American
* Be between the ages of 18-65 years
* Body Mass Index between 25- 49.9 kg/m2
* Live in the Columbia, SC/Midlands area
* Be able to attend all monitoring and weekly class visits
* Be willing to be randomized to either diet

Exclusion Criteria:

* Currently following a vegan diet
* Diagnosed with diabetes that is controlled by medication
* Currently pregnant or breastfeeding (or plan to become pregnant in the next 24 months)
* Under the age of 18 years old
* 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

Answer: A