What Makes Food Delicious & The Fight Against Quackery

Innate Preferences

Humans have innate preferences for certain tastes like sweetness, umami, and saltiness. Rob Dunn explains that while these preferences are universal, individual variations exist due to genetic differences. He also distinguishes between taste and flavor, noting that flavor encompasses taste, mouthfeel, smell, and even visual presentation 1. This complex interplay of senses makes our experience of food unique and deeply personal.

   

Evolutionary Changes

The evolution of human taste is closely linked to our survival and development. Rob Dunn highlights a pivotal moment 1.9 million years ago when our ancestors' brains grew larger, necessitating more calories, which they obtained by making food more delicious through cooking and fermenting 2. This innovation not only made food easier to eat but also more flavorful, setting the stage for further cultural and technological advancements.

   

Modern Engineering

Modern food engineering has created highly palatable but often unhealthy foods. Rob Dunn explains that companies design products like Doritos to perfectly suit our taste receptors, providing a super reward that can lead to overconsumption 3. This manipulation of our innate preferences mirrors natural processes, where some fruits have evolved to trigger our taste receptors without providing nutritional value 3.