Submitted by justanotherbabywitxh t3_zk82ye in askscience
liquid_at t1_j01tt8b wrote
there are definitely psychological components to liking and disliking smells, but afaik the common explanation is that those of us who happened to develop a dislike for bad things just happened to improve their survival rate, causing their own genome to become more dominant than the genome of those that ate rotten food.
Same reason why a taste for salty, spicy or bitter food was preferred by evolution. Those who used additives in their food that preserved them were less likely to poison themselves.
horsetuna t1_j056tfd wrote
Iirc salt cravings and finding salty foods tasty can actually be a sign of salt deficiency. So your body 'makes' you find it even more delicious until you are topped up. But other times the same salty chips may be revolting.
liquid_at t1_j064ser wrote
definitely. When you crave some specific food, it's usually your body telling you that it needs those nutrients right now.
gets a bit skewed with highly processed food, but the body is smart in that way.
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