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One notion is that cooking allowed more foods to be eaten which could not be eaten raw, though this advantage was clearly more used in the Neolithic era, long after cooking was invented.
_If things are as rosy as you say, I don’t understand what inspired early man to cook his food in the first place. If he found his raw vegetables as tasty as cooked dishes, or even more so, according to what you say... He wasn’t a masochist, after all.http://www.reocities.com/HotSprings/7627/ggraw_eat1.html (http://www.reocities.com/HotSprings/7627/ggraw_eat1.html)
o Let me suggest a possible incident that will account for what might have happened after our ancestors discovered fire. Imagine a tribal people that had always eaten raw food before and who, one day, started cooking_even just one food_either out of curiosity, accident, or possibly because a forest fire had cooked their sweet potatoes to a turn.
_Sweet potatoes? But, one can’t even eat them raw.
o Why not? They taste delicious when the body needs them; they’re crunchy, juicy, a bit like pears, sweet-tasting and fragrant. Like all raw food eaters, those tribal people most certainly ate their sweet potatoes raw with relish as long as they needed them and, once the aversion threshold had been reached, felt their texture turned tough and that they tasted like aftershave. Those signs warn a raw food eater that he can’t go on eating sweet potato, as yourself will perhaps experience one day.
_I’ve already experienced it. I’ve never found that sweet potatoes had any other texture or taste than something quite repulsive!
o Very true. I should have said that perhaps you’ll discover one day how good they can taste.
Let’s go back to those tribal people who ate their sweet potatoes cooked for the first time. Try to conjure up the scene in your mind’s eye.
_If I understand you aright, they presumably didn’t, at any point, feel that they couldn’t go on eating.
o Without the slightest doubt. They probably ate an amount that far exceeded their need for glucose, starch, or any other nutrient present in those tubers. What do you think happened, the following day, when, as usual, they tried to eat their fine sweet potatoes raw?
_They found they tasted bad.
o Precisely. Their instincts prevented them from increasing the overload resulting from the revelries of the previous day. They found their raw sweet potatoes tough and inedible.
_They must have been utterly baffled.
o There were two possible reactions. Either they thought that their raw sweet potatoes had suddenly become distasteful because of some divine curse and that, to exorcise the sweet potatoes, they had to go on cooking them; that was the advent of fire as a cathartic agent.
Or, alternatively, the tribal dietitian concluded that “the raw sweet potatoes tasted bad today because, when we ate them cooked yesterday, we disregarded our instincts and overloaded our metabolism and thus today our taste buds, which work properly with raw food, prevented us from increasing the overload not yet cleared.”
_I don’t believe that a tribal people could have reasoned in such a way.
o Neither do I, especially since 20th century dietitians are as yet unable to.
My own stance is that cooking creates addictive opioids which influence the brain like drugs do. The Waisays website has lots of scientific data on this subject.Sure, that's probably another reason.