Remember those diagrams from natural science classes mapping sweet, sour, bitter, and salty tastes to specific tongue areas? They're completely inaccurate. Created from a misinterpretation of a 1901 German student's research, the truth is our entire mouth—including the palate—detects sugar effectively. Receptors even exist in the esophagus and stomach.
Research from 1975 revealed newborns prefer sugar more intensely than adults. Food manufacturers capitalized on this, sweetening products for children and conditioning lifelong cravings. As Michael Moss explains in his book Sugar, Salt and Fat: How the Food Giants Hooked Us, "the more the industry sweetened its products, the more children—and later adults—craved sweetness."
Coined in the 1970s, the 'bliss point' is the ideal sugar concentration for peak pleasure. Food companies optimize formulas to hit this threshold, maximizing addiction without regard for nutrition. Exceed it, and palatability drops. Fat experiments yielded starkly different results, as detailed in Moss's research-backed book.
In a study, 13 participants sampled milk, cream, and sugar mixtures with increasing fat content. Unlike sugar, no bliss point emerged—nor did any reject the fattiest blends. Our senses fail to signal excess fat, allowing manufacturers to load products unchecked.
The real danger? Combining fat and sugar. Students rating frostings detected sugar levels but misjudged fat. Adding sugar to fatty mixes made them seem lighter, per Moss.
Moss's book compiles decades of studies revealing how science enables addictive foods. Essential for anyone serious about nutrition, Sugar, Salt and Fat (Calmann-Lévy, €19.90) offers profound insights. Head to your local bookstore this weekend.
