Effects of retro-nasal aroma release on satiation

Br J Nutr. 2008 May;99(5):1140-8. doi: 10.1017/S0007114507837482. Epub 2007 Oct 22.

Abstract

It is suggested that the brain response of a food odour sensed retro-nasally is related to satiation. The extent of retro-nasal aroma release during consumption depends on the physical structure of a food, i.e. solid foods generate a longer, more pronounced retro-nasal aroma release than liquid foods. The aim of this study was to investigate if a beverage becomes more satiating when the retro-nasal aroma release profile coincides with the profile of a (soft) solid food. In a double-blind placebo-controlled randomised cross-over full factorial design, twenty-seven healthy subjects (fourteen males and thirteen females; aged 16-65 years; BMI 19-37 kg/m(2) were administered aroma profiles by a computer-controlled stimulator based on air dilution olfactometry. Profile A consisted of a profile that is obtained during consumption of normal beverages. Profile B is normally observed during consumption of (soft) solids. The two profiles were produced with strawberry aroma and administered in a retro-nasal fashion, while the subjects consumed a sweetened milk drink. Before, during and after the sensory stimulation, appetite profile measurements were performed. Subjects felt significantly more satiated if they were aroma stimulated with profile B (P = 0.04). After stimulation with sweet strawberry aroma, there was a significant decrease in desire to eat sweet products (P = 0.0001). In conclusion, perceived satiation was increased by altering the extent of retro-nasal aroma release.

Publication types

  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Animals
  • Appetite / physiology
  • Beverages*
  • Cross-Over Studies
  • Double-Blind Method
  • Drinking / physiology
  • Energy Intake / physiology
  • Female
  • Food
  • Humans
  • Male
  • Middle Aged
  • Milk
  • Nasal Cavity / physiology*
  • Odorants*
  • Satiation / drug effects
  • Satiation / physiology*
  • Smell / physiology*
  • Sweetening Agents
  • Taste / physiology
  • Young Adult

Substances

  • Sweetening Agents