Findings from an online behavioural weight management programme provided with or without a fortified diet beverage.
The present multi-centre randomised weight-loss trial evaluated the efficacy of a low-intensity 12-week online behavioural modification programme, with or without a fortified diet beverage using a 2 × 2 factorial design. A total of 572 participants were randomised to: (1) an online basic lifestyle information (OBLI) intervention, consisting of one online informational class about tips for weight management; (2) an online behavioural weight management (OBWM) intervention, entailing 12 weekly online classes focused on weight-loss behaviour modification; (3) an OBLI intervention plus a fortified diet cola beverage (BEV) containing green tea extract (total catechin 167 mg), soluble fibre dextrin (10 g) and caffeine (100 mg) (OBLI+BEV); (4) OBWM+BEV. Assessments included height, weight, dual-energy X-ray absorptiometry-derived body composition, and waist circumference (WC). Attrition was 15·7 %. Intention-to-treat (ITT) models demonstrated a main effect for type of Internet programme, with those assigned to the OBWM condition losing significantly more weight (F= 7·174; P= 0·008) and fat mass (F= 4·491; P= 0·035) than those assigned to the OBLI condition. However, there was no significant main effect for the OBWM condition on body fat percentage (F= 2·906; P= 0·089) or WC (F= 3·351; P= 0·068), and no significant main effect for beverage use or significant interactions between factors in ITT models. A 12-week, low-intensity behaviourally based online programme produced a greater weight loss than a basic information website. The addition of a fortified diet beverage had no additional impact.
Institute for Biobehavioral Health Research, National Development and Research Institutes, Inc., 1920 West 143rd Street, Suite 120, Leawood, KS 66224, USA.
C Keith
CK
Haddock
Institute for Biobehavioral Health Research, National Development and Research Institutes, Inc., 1920 West 143rd Street, Suite 120, Leawood, KS 66224, USA.
Walker S C
WS
Poston
Temple University, Philadelphia, PA, USA.
Caitlin
C
Lagrotte
Temple University, Philadelphia, PA, USA.
Alicia A
AA
Klotz
Temple University, Philadelphia, PA, USA.
Tracy L
TL
Oliver
Temple University, Philadelphia, PA, USA.
Stephanie S
SS
Vander Veur
Temple University, Philadelphia, PA, USA.
Gary D
GD
Foster
MRC Human Nutrition Research, Elsie Widdowson Laboratory, Cambridge, UK.
Susan A
SA
Jebb
MRC Human Nutrition Research, Elsie Widdowson Laboratory, Cambridge, UK.
Carmel
C
Moore
Global Scientific and Regulatory Affairs, The Coca-Cola Company, Atlanta, GA, USA.
Susan A
SA
Roberts
Behavioral Medicine Research Center, Baylor College of Medicine, Houston, TX, USA.
Rebecca S
RS
Reeves
Behavioral Medicine Research Center, Baylor College of Medicine, Houston, TX, USA.
Mary Pat
MP
Bolton
Behavioral Medicine Research Center, Baylor College of Medicine, Houston, TX, USA.
John P
JP
Foreyt
D000328:Adult; D001628:Beverages / Q000032:analysis*; D002110:Caffeine / Q000737:chemistry; D003912:Dextrins / Q000737:chemistry; D005260:Female; D006801:Humans; D008875:Middle Aged; D016017:Odds Ratio; D010936:Plant Extracts; D013662:Tea / Q000737:chemistry; D006113:United Kingdom; D014481:United States; D015431:Weight Loss / Q000187:drug effects*; D061217:Weight Reduction Programs / Q000379:methods / Q000458:organization & administration*
D003912:Dextrins; D010936:Plant Extracts; D013662:Tea; D002110:Caffeine