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In this podcast, Gustologist Dr. Gary Beauchamp discusses a range of interesting topics including tastebud flim-flam, MSG research, weaning off sugar, salt restrictions in different countries, losing taste with Covid, artificial sweeteners, acquiring a taste for foods, and the connection between a sweet tooth and booze consumption.
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Quick takeaways
- The distribution of taste buds on the tongue determines varying sensitivity to different tastes, with bitterness detected at the back, sweetness at the front, and saltiness and amino acid tastes throughout.
- MSG is a safe substance that stimulates umami taste receptors, and individual preferences for spicy foods that cause pain remain a mystery.
Deep dives
Taste receptors and the importance of differentiating tastes
Taste buds are distributed throughout the tongue and palate, with varying sensitivity to different tastes. Bitterness is mainly detected in the back of the tongue, while sweetness is more prominent in the front. Saltiness and amino acid tastes are found throughout the tongue. The sensation of capsaicin, found in hot peppers, is a separate pain response and does not go through the taste system. MSG (monosodium glutamate) is a safe substance when consumed in reasonable amounts and stimulates umami taste receptors. The preference for spicy foods varies among individuals, and the love of spicy foods that cause pain is still a mystery.
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