Administration of a dietary supplement ( N-oleyl-phosphatidylethanolamine and epigallocatechin-3-gallate formula) enhances compliance with diet in healthy overweight subjects: a randomized controlled trial

Br J Nutr. 2009 Feb;101(3):457-64. doi: 10.1017/S0007114508024008. Epub 2008 Jul 1.

Abstract

Many studies have found that N-oleyl-ethanolamine (NOE), a metabolite of N-oleyl-phosphatidylethanolamine (NOPE), and epigallocatechin-3-gallate (EGCG) inhibit food intake. The main aim of this study was to evaluate the efficacy of 2 months of administration of an oily NOPE-EGCG complex (85 mg NOPE and 50 mg EGCG per capsule) and its effect on compliance with diet in healthy, overweight people. Secondary end-points of the study were to compare body composition, metabolic parameters, sensation of appetite, depressive symptoms and severity of binge eating. Using a parallel-arm, double-blind, placebo-controlled design, 138 healthy, overweight women (106) and men (thirty-two) were randomly assigned to one of two groups: (1) the treatment group (seventy-one patients: fifty-three females, eighteen males) taking two capsules per day of an oral supplement or (2) the placebo group (sixty-seven patients: fifty-three females, fourteen males). Both groups observed a 3344 kJ/d energy restriction. All parameters were assessed both before onset and after 2 months on the supplement. Dropout was 6 % in the NOPE-EGCG group and 27 % in the placebo group (P < 0.001). The treatment induced a significant weight reduction in both groups ( - 3.28 kg and - 2.67 kg in NOPE-EGCG and placebo, respectively); the weight changes were not significantly different between the groups. NOPE-EGCG treatment improved insulin resistance (P < 0.001), the sensation feelings of fullness (P < 0.05), depressive symptoms (P < 0.004) and severity of binge eating (P < 0.0001).

Publication types

  • Randomized Controlled Trial

MeSH terms

  • Adolescent
  • Adult
  • Appetite Depressants / administration & dosage*
  • Biomarkers / blood
  • Blood Glucose / analysis
  • Body Composition
  • Catechin / administration & dosage
  • Catechin / analogs & derivatives*
  • Depression
  • Diet, Reducing*
  • Dietary Supplements
  • Double-Blind Method
  • Eating
  • Female
  • Humans
  • Insulin / blood
  • Male
  • Middle Aged
  • Overweight / blood
  • Overweight / diet therapy*
  • Patient Compliance*
  • Phosphatidylethanolamines / administration & dosage
  • Satiation
  • Statistics, Nonparametric
  • Weight Loss

Substances

  • Appetite Depressants
  • Biomarkers
  • Blood Glucose
  • Insulin
  • N-oleyl-phosphatidylethanolamine
  • Phosphatidylethanolamines
  • Catechin
  • epigallocatechin gallate