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What is the argument against nightshades?

Answered on September 12, 2014
Created January 24, 2013 at 1:52 AM

(Other than potatoes). I get that nightshades evolved separately from humans due to being native to the Americas, and therefore weren't literally in the original human diet, but is that the only thing? I'm a newb in terms of the biochemistry. What are the actual negative effects of tomatoes and eggplant in the diet?

37cc142fbb183f2758ef723a192e7a9d

(1353)

on January 25, 2013
at 03:05 AM

Yeah I see that the trend is moving away from "re-enactment" which is good. I eat a lot of tomatoes and grow them as well. Part of the reason I was asking, since I've come across people saying they're not "paleo"

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3 Answers

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1
F54a16e4caf4dc8da9ef1369f46a95cd

(591)

on January 24, 2013
at 02:04 AM

They contain alkaloid which can have a negative effect on nerve-muscle function and digestive function in animals and humans, and may also be able to compromise joint function. (From http://www.whfoods.com/genpage.php?tname=george&dbid=62)

I don't know that there's an argument against them, but that we should be aware they are potentially the cause of certain problems people may have.

1
Ee6932fe54ad68039a8d5f7a8caa0468

(2668)

on January 24, 2013
at 06:56 PM

hey, i wouldn't cut nightshades automatically.

what i wanted to write about though was that using a foods availability in the 'original' human diet based on geography is a bad idea. you'd have to say goodbye to most paleo staples. don't use that as the rubric.

37cc142fbb183f2758ef723a192e7a9d

(1353)

on January 25, 2013
at 03:05 AM

Yeah I see that the trend is moving away from "re-enactment" which is good. I eat a lot of tomatoes and grow them as well. Part of the reason I was asking, since I've come across people saying they're not "paleo"

0
74b69fae3b2a9e9ed80e42348f550f17

on January 24, 2013
at 06:20 PM

Nightshades all belong to the solanacae family, a number of which (belladonna/deadly nightshade for example) are poisonous. As far as the nightshades in a normal diet are concerned (tomatoes, potatoes, peppers and chillis, eggplants) most people can tolerate them without a problem but for those who react to them (usually to the alkaloids) they can provoke a wide range of both physical and behavioural symptoms. See this article about the problems potato in tolerance for example - http://www.foodsmatter.com/allergy_intolerance/nightshade/articles/potatoes_morrow_b_08_11.html

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