Adequate Dairy Intake on Weight Change in Girls
| Status: | Completed |
|---|---|
| Conditions: | Obesity Weight Loss |
| Therapuetic Areas: | Endocrinology |
| Healthy: | No |
| Age Range: | 13 - 14 |
| Updated: | 3/30/2013 |
| Start Date: | July 2008 |
| End Date: | July 2013 |
| Contact: | Joan M Lappe, PhD |
| Email: | jmlappe@creighton.edu |
| Phone: | 402-280-4646 |
Efficacy of Optimal Levels of Dietary Dairy on Modulation of Adolescent Weight
SPECIFIC AIM The aim of this study is to determine the effects of increasing dairy intake to
four servings per day on change in percent body fat in post-menarcheal adolescent girls with
habitual low calcium intakes.
HYPOTHESIS Post-menarcheal adolescent girls with habitually low calcium intake who consume
dairy foods providing at least 1200 mg of calcium per day will have a smaller increase in
percent body fat, as measured by dual energy absorptiometry, during one year than
post-menarcheal adolescent girls on a usual diet of 600 mg of calcium per day or less.
Inclusion Criteria:
- Age 13-14 years old (must be this age when consent is signed)
- Above the 50th percentile for BMI
- Above the 85th percentile for BMI with approval from their primary physician
- At least one and one- half years post menarche
- Habitual dietary calcium intake of 600mg/d or less as assessed by 3 day diet diary.
This will be inclusive of supplemental calcium and dietary intake.
- Willingness to increase dietary calcium (low fat [skim, 1%, 2%] milk or yogurt) for
one year
Exclusion Criteria:
- Menarche prior to age 10
- History of lactose intolerance or milk allergy
- Weight >300 pounds
- BMI > 97 percentile for age and gender
- Pregnancy
- Chronic disease or disorder like diabetes, polycystic ovarian syndrome, thyroid
disease, seizures or cancer (cancer is ok if it has been >10 years)
- Use of steroids like prednisone, prednisolone, hydrocortisone, Flovent, Advair, or
Nasonex
- Use of weight reducing medications like Meredia, alli, Dexatrim or Xenical
- Use of contraceptives like Yasmin, Ortho Tri-Cyclen, Apri, Aviane or Depo-Provera for
any reason, including acne (see inclusive list)
- Use of acne medications like Accutane or high dose Vitamin A
- Use of ADHD medications like Adderall, Ritalin, Concerta. (Per Dr.
Ramaswamy-Straterra OK) (see inclusive list)
- Use of seizure medications like Lamictal or Phenobarb (see inclusive list)
- Use of anti-depressants like Prozac or Effexor (see inclusive list)
- Diagnosed eating disorder
- Dieting behavior with weight loss > 10 pounds in the last 3 months (IF YES, consult
with Project Manager)
- Metal in the skeleton (pins, rods, etc)
- Sibling of a child who is or has been on a dietary study in the last 5 years
- Total body BMC Z-score below -2.0 at baseline
- Participating in other ongoing research protocols
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