Genetic taste markers and food preferences

Area of Science:

• Genetics
• Nutritional Science
• Sensory Science

Background:

• Inherited taste sensitivity, specifically to 6-n-propylthiouracil (PROP), varies significantly among individuals.
• PROP tasters perceive it as intensely bitter, while non-tasters do not detect its bitterness.
• This genetic trait impacts the acceptance and preference for various foods, particularly those with bitter compounds.

Framework:

• This review synthesizes research on the genetic basis of taste perception and its influence on dietary choices.
• It explores the link between genetic taste markers, such as PROP sensitivity, and consumer acceptance of bitter foods.
• The framework examines how inherited taste factors shape food preferences and consumption patterns.

Implementation:

• Studies demonstrate that individuals with higher PROP sensitivity, often women identified as 'super-tasters', exhibit lower acceptance of bitter foods.
• Examples include grapefruit juice, green tea, Brussels sprouts, and soy products, which contain beneficial phytochemicals.
• This suggests a direct relationship between genetic taste perception and the willingness to consume health-promoting plant-based foods.

Implications:

• Consumer acceptance of plant-based foods rich in phytochemicals (flavonoids, polyphenols, glucosinolates, isoflavones) may be critically influenced by inherited taste factors.
• Understanding genetic taste markers can inform strategies to enhance the palatability and intake of nutrient-dense, bitter foods.
• This knowledge has potential applications in food product development, dietary recommendations, and public health initiatives aimed at improving nutrition.