Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
30 participants
INTERVENTIONAL
2007-06-30
2007-12-31
Brief Summary
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Detailed Description
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Conditions
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Keywords
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Study Design
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NA
SINGLE_GROUP
BASIC_SCIENCE
NONE
Interventions
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Medifast Metabolism-boosting Beverages
Medifast metabolism-boosting beverages containing 90 mg EGCG and 100 mg caffeine.
Eligibility Criteria
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Inclusion Criteria
* BMI ≥18.5 - ≤ 40.0 kg/m2
* Non-smokers
* No known food allergies to wheat, gluten, soy or nuts
* ≤ 14 alcoholic beverages per week
* No sensitivity to caffeine or green tea
* No alcohol or caffeine on days when metabolism is tested
* Willing and able to give informed consent
* Not currently using appetite-affecting medications (e.g SSRIs, steroids, Ritalin)
* Not pregnant or lactating
Exclusion Criteria
* Chronic uncontrolled health problems (not including obesity or controlled: type-2 diabetes, hyperlipidemia, hypertension)
* History of arrhythmia, or taking anti-arrhythmic medications (e.g. propafenone)
* Schizophrenia, history of bipolar disorder, current Major Depressive Disorder
* Dependence on alcohol or sedative-hypnotic drugs (e.g. benzodiazepines)
* Cognitive impairment severe enough to preclude informed consent
* Taking weight loss or appetite-suppressant medications
* Taking appetite affecting medications (e.g. SSRIs, steroids, Ritalin)
* Food allergies to wheat, gluten, soy, or nuts
* Sensitivity to caffeine or green tea
18 Years
65 Years
ALL
Yes
Sponsors
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Medifast, Inc.
INDUSTRY
Responsible Party
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Medifast Inc.
Principal Investigators
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Lisa M Davis, PhD, PA-C
Role: PRINCIPAL_INVESTIGATOR
Medifast, Inc.
Christopher D Coleman, MS,RD,LDN
Role: STUDY_DIRECTOR
Medifast, Inc.
Locations
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Medifast Inc.
Owings Mills, Maryland, United States
Countries
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References
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Acheson KJ, Schutz Y, Bessard T, Anantharaman K, Flatt JP, Jequier E. Glycogen storage capacity and de novo lipogenesis during massive carbohydrate overfeeding in man. Am J Clin Nutr. 1988 Aug;48(2):240-7. doi: 10.1093/ajcn/48.2.240.
Golay A, Schutz Y, Meyer HU, Thiebaud D, Curchod B, Maeder E, Felber JP, Jequier E. Glucose-induced thermogenesis in nondiabetic and diabetic obese subjects. Diabetes. 1982 Nov;31(11):1023-8. doi: 10.2337/diacare.31.11.1023. No abstract available.
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den Besten C, Vansant G, Weststrate JA, Deurenberg P. Resting metabolic rate and diet-induced thermogenesis in abdominal and gluteal-femoral obese women before and after weight reduction. Am J Clin Nutr. 1988 May;47(5):840-7. doi: 10.1093/ajcn/47.5.840.
Abbott RD, Ross GW, White LR, Nelson JS, Masaki KH, Tanner CM, Curb JD, Blanchette PL, Popper JS, Petrovitch H. Midlife adiposity and the future risk of Parkinson's disease. Neurology. 2002 Oct 8;59(7):1051-7. doi: 10.1212/wnl.59.7.1051.
Allison DB, Gadbury G, Schwartz LG, Murugesan R, Kraker JL, Heshka S, Fontaine KR, Heymsfield SB. A novel soy-based meal replacement formula for weight loss among obese individuals: a randomized controlled clinical trial. Eur J Clin Nutr. 2003 Apr;57(4):514-22. doi: 10.1038/sj.ejcn.1601587.
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Curatolo PW, Robertson D. The health consequences of caffeine. Ann Intern Med. 1983 May;98(5 Pt 1):641-53. doi: 10.7326/0003-4819-98-5-641.
Diepvens K, Westerterp KR, Westerterp-Plantenga MS. Obesity and thermogenesis related to the consumption of caffeine, ephedrine, capsaicin, and green tea. Am J Physiol Regul Integr Comp Physiol. 2007 Jan;292(1):R77-85. doi: 10.1152/ajpregu.00832.2005. Epub 2006 Jul 13.
Dulloo AG. Ephedrine, xanthines and prostaglandin-inhibitors: actions and interactions in the stimulation of thermogenesis. Int J Obes Relat Metab Disord. 1993 Feb;17 Suppl 1:S35-40.
Dulloo AG, Duret C, Rohrer D, Girardier L, Mensi N, Fathi M, Chantre P, Vandermander J. Efficacy of a green tea extract rich in catechin polyphenols and caffeine in increasing 24-h energy expenditure and fat oxidation in humans. Am J Clin Nutr. 1999 Dec;70(6):1040-5. doi: 10.1093/ajcn/70.6.1040.
Festi D, Colecchia A, Sacco T, Bondi M, Roda E, Marchesini G. Hepatic steatosis in obese patients: clinical aspects and prognostic significance. Obes Rev. 2004 Feb;5(1):27-42. doi: 10.1111/j.1467-789x.2004.00126.x.
Gale SM, Castracane VD, Mantzoros CS. Energy homeostasis, obesity and eating disorders: recent advances in endocrinology. J Nutr. 2004 Feb;134(2):295-8. doi: 10.1093/jn/134.2.295.
Gougeon R, Harrigan K, Tremblay JF, Hedrei P, Lamarche M, Morais JA. Increase in the thermic effect of food in women by adrenergic amines extracted from citrus aurantium. Obes Res. 2005 Jul;13(7):1187-94. doi: 10.1038/oby.2005.141.
Hedley AA, Ogden CL, Johnson CL, Carroll MD, Curtin LR, Flegal KM. Prevalence of overweight and obesity among US children, adolescents, and adults, 1999-2002. JAMA. 2004 Jun 16;291(23):2847-50. doi: 10.1001/jama.291.23.2847.
Heymsfield SB, van Mierlo CA, van der Knaap HC, Heo M, Frier HI. Weight management using a meal replacement strategy: meta and pooling analysis from six studies. Int J Obes Relat Metab Disord. 2003 May;27(5):537-49. doi: 10.1038/sj.ijo.0802258.
Keaney JF Jr, Larson MG, Vasan RS, Wilson PW, Lipinska I, Corey D, Massaro JM, Sutherland P, Vita JA, Benjamin EJ; Framingham Study. Obesity and systemic oxidative stress: clinical correlates of oxidative stress in the Framingham Study. Arterioscler Thromb Vasc Biol. 2003 Mar 1;23(3):434-9. doi: 10.1161/01.ATV.0000058402.34138.11. Epub 2003 Jan 30.
Klaus S, Pultz S, Thone-Reineke C, Wolfram S. Epigallocatechin gallate attenuates diet-induced obesity in mice by decreasing energy absorption and increasing fat oxidation. Int J Obes (Lond). 2005 Jun;29(6):615-23. doi: 10.1038/sj.ijo.0802926.
Pouliot MC, Despres JP, Nadeau A, Moorjani S, Prud'Homme D, Lupien PJ, Tremblay A, Bouchard C. Visceral obesity in men. Associations with glucose tolerance, plasma insulin, and lipoprotein levels. Diabetes. 1992 Jul;41(7):826-34. doi: 10.2337/diab.41.7.826.
Fiorini RN, Donovan JL, Rodwell D, Evans Z, Cheng G, May HD, Milliken CE, Markowitz JS, Campbell C, Haines JK, Schmidt MG, Chavin KD. Short-term administration of (-)-epigallocatechin gallate reduces hepatic steatosis and protects against warm hepatic ischemia/reperfusion injury in steatotic mice. Liver Transpl. 2005 Mar;11(3):298-308. doi: 10.1002/lt.20348.
Rumpler W, Seale J, Clevidence B, Judd J, Wiley E, Yamamoto S, Komatsu T, Sawaki T, Ishikura Y, Hosoda K. Oolong tea increases metabolic rate and fat oxidation in men. J Nutr. 2001 Nov;131(11):2848-52. doi: 10.1093/jn/131.11.2848.
Segal KR, Gutin B, Nyman AM, Pi-Sunyer FX. Thermic effect of food at rest, during exercise, and after exercise in lean and obese men of similar body weight. J Clin Invest. 1985 Sep;76(3):1107-12. doi: 10.1172/JCI112065.
Rudelle S, Ferruzzi MG, Cristiani I, Moulin J, Mace K, Acheson KJ, Tappy L. Effect of a thermogenic beverage on 24-hour energy metabolism in humans. Obesity (Silver Spring). 2007 Feb;15(2):349-55. doi: 10.1038/oby.2007.529.
Thearle M, Aronne LJ. Obesity and pharmacologic therapy. Endocrinol Metab Clin North Am. 2003 Dec;32(4):1005-24. doi: 10.1016/s0889-8529(03)00066-5.
Westerterp-Plantenga MS, Lejeune MP, Kovacs EM. Body weight loss and weight maintenance in relation to habitual caffeine intake and green tea supplementation. Obes Res. 2005 Jul;13(7):1195-204. doi: 10.1038/oby.2005.142.
Yoshioka M, Doucet E, Drapeau V, Dionne I, Tremblay A. Combined effects of red pepper and caffeine consumption on 24 h energy balance in subjects given free access to foods. Br J Nutr. 2001 Feb;85(2):203-11. doi: 10.1079/bjn2000224.
Other Identifiers
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20070530
Identifier Type: OTHER
Identifier Source: secondary_id
MED010
Identifier Type: -
Identifier Source: org_study_id