
Chapter 1
The discovery of the fifth taste
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Chapter 2
The biology of craveability
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Chapter 3
Umami across global cuisines
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Chapter 4
The MSG controversy and food science
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YOUR GOAL
Master of The science of umami
Ch 2 · The biology of craveability
renato When that savory umami hits your tongue, your brain lights up, says, 'More, more, more!'
Fun Fact
Supercharged taste buds: When you pair kelp with dried bonito flakes, the umami flavor doesn't just double; the compounds multiply each other's strength by eight times.
Glossary
umami (noun)
A category of taste in food corresponding to the savory flavor of glutamates. In 2000, researchers discovered specialized receptors on the human tongue that detect this addictive taste.
A category of taste in food corresponding to the savory flavor of glutamates. In 2000, researchers discovered specialized receptors on the human tongue that detect this addictive taste.
Quiz
From an evolutionary perspective, what vital macronutrient does the taste of umami signal to our brains?
Quiz
Which nerve transmits umami signals from the stomach to the brain to prepare for digestion?
Quiz
Which nucleotide, highly concentrated in bonito flakes, works synergistically with seaweed glutamate?
Quiz
What happens to the flavor intensity when glutamate is combined with nucleotides like IMP or GMP?



