The current review summarizes the importance of taste perception with regard to acceptance of oral nutritional supplements (ONS) in young children. We also shed light on how basic tastes may influence the orosensory detection of ONS in the light of genetic variations, encoding for different taste modalities, particularly for sweet and bitter (and fat), in children.
Single nucleotide polymorphism (SNP) of bitter and sweet taste receptor genes, that is, respectively, TAS2R38 and T1R2/T1R3, may influence orosensory perception of ‘bitter-made-sweet’ ONS. The SNP of fat taste receptor gene, that is, CD36, might communicate with bitter taste perception. The emerging new sixth fat taste may interfere with obesity in children.
Sweet and bitter taste modalities are innate cues, expressed by children from birth to adolescence, either by a strong preference or by food aversion. Sweet and bitter tastes also communicate with each other as sweeteners can mask bitter phenotype. The fat preference, encoded by specific lingual taste receptors, is also modulated, via its interaction with phenotype and genotype, by bitter taste. Sodium salts might interact with bitter taste. Finally, the taste modalities will impact on the intake of ONS in children as the taste phenotype changes in this population, irrespective to genotype.
aPhysiologie de la Nutrition & Toxicologie (NUTox), UMR U1231 INSERM/Université de Bourgogne-Franche Compté (UBFC), Dijon, France
bDépartement de Biochimie, Biologie Cellulaire et Moléculaire, Université des Frères Mentouri, Constantine, Algeria
Correspondence to Naim Akhtar Khan, Physiologie de la Nutrition & Toxicologie, UMR INSERM U1231, Université de Bourgogne-Franche Comté (UBFC), Dijon-21000 6, boulevard Gabriel, Dijon 21000, France. Tel: +33 3 80 39 63 12; fax: +33 3 80 39 63 30; e-mail: Naim.Khan@u-bourgogne.fr