How fake flavour molecules trick your tongue

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Previous video about how taste works: https://youtu.be/FSYE1T5d9jc
Video about how sugar twists light: https://youtu.be/975r9a7FMqc
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Artificial sweetener works by binding to your sweetness receptors but they provide no calories. What effect does that have on the sweetness receptors in your gut and can your other taste senses be tricked in the same way: sour, butter, umami (savory) and salt?

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