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In reviewing questions under the nightshades tag, I know there are some paleohackers who have eliminated nightshades from their diet. But more generally, where do nightshades stand in terms of the paleodiet? Are they in or out? Or are they simply to be avoided (or included) on an individual basis?

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I would caution people who think that nightshades are their poison to take in the whole picture of their lifestyle first. While yes i believe there are those who will do better without nightshades in their diet, there also seem to be many who come to this for a quick fix to a litany of lifestyle problems. If you're eating chocolate desserts, drinking milk in your coffee, not moving around like a kid, still having pizza here and there, etc. there are more obvious detrimental ingredients in your life that are probably having more acute and profound influence on your well-being. – ben61820 Nov 7 2010 at 14:57

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I get migraines from tomatoes and peppers so i skip eggplants and all spice type peppers too. I make marinara from beets and carrots (look up macrobiotic no-mater sauce online) and use this mix to make no-mater chili sauce and even ketchup. No headaches. Yay!

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Try this one: macrobiotic.about.com/od/saucesanddressings/r/… – lia36 Dec 30 at 20:02
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after doing a pretty strict elimination diet, i cooked up a batch of stew (from "Paleo Comfort Foods") containing half a dozen different nightshades -- and my digestive tract threw a horrible tantrum! never had problems with peppers or tomatillos or chili powder before, but put them all together and they were too much for me. painful, bloated, sleepless night....

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Tested a few times in the last 3 months and had 24 hours crazy gas! (out of nowhere)

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fuck nightshades! honestly i hate harvesting tomatoes. after having worked for many a farm where they are pretty much the fall money crop i noticed heirlooms and wild varieties especially burn the hair off of my skin and give me a horrible headache. not only that, when consumed regularly, chile peppers and powder give me crippling arthritic pains and make the bottom of my feet swell. i do like potatoes but they have to be welllll cooked and usually i just eat the skin and a little flesh...and mostly do best with the purple varieties for whatever reason.

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i really dont eat em tho.........no peppers or tomatoes ever again for me, going on over a year now...maybe potatoes once in a blue moon – jessica Mar 19 2012 at 23:16
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bahhh humbug. i eat my nightshades. i just rid everything else thats non-Paleo. 80/20 rule

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I have a very strong reaction to bell peppers - migraine that forces me into bed. The green bell peppers are the worst. Second is any kind of peppers, such as those used in Picante sauce. I'm beginning to suspect that potatoes are also a problem and have started to eliminate them. I have had joint and muscle pain for about a decade. It has been classified as Fibromyalgia, although I'm beginning to suspect that FM is a bucket that largely contains food and environmental allergies. I only began to suspect bell peppers after my brother-in-law casually mentioned that his multi-decade bout of migraines had been traced to bell peppers by his Chiropractor. Our wives (sisters, obviously) cooked routinely with bell pepper. They don't do that anymore and now, neither of us has migraines anymore, except when I travel and restaurants dose me with it (even after me asking the prep details), especially Paprika (dried, ground bell pepper). Nightshades have a reputation for a reason. My dad told me, in his later years (70's - 80's) that his arthritis would become much worse if he ate potatoes more than once a week.

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Very informative - thank you for sharing! – elaichi Aug 2 at 22:34
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After 20 years of being pretty much Paleo with a no sugars/no fruit twist, my body has changed...I turned 50 and suddenly there is something UP! I'm a lady and its interesting to note that the body adds fat after menonpause to help produce the progesterone that is declining. Maybe thats all it is? I mean how else can you gain more weight on the same diet that produced the loss of weight? Any thoughts on this?

I wonder if I need to drop the nightshades and the small amounts of dairy I cheat into the diet. That would truly mean an end to the vestiges of my southwest cooking!

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20 years! Wow! What was your resource back then? – Paul May 9 2011 at 17:12
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I personally don't have any issues with nightshades, but I haven't tried eliminating them, either. I absolutely adore potatoes, tomatoes, and peppers and would be quite sad (and might still eat them) if I found out they were doing me wrong.

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I'm of the positions that potatoes do us nothing but wrong and I class them as equal to wheat in my 'never eat' list. This is hard for me - as an Irishman and spud lover - to say, but there seems to be nothing to gain (except GIRTH) from eating these starch-laden hand-grenades. :-( – BeefWalker Feb 8 2012 at 4:18
Implying there's anything uniquely fattening about the calories derived from starch in metabolically healthy individuals, aside from the anecdotes regarding appetite stimulation – Matthius Mar 20 2012 at 10:31
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List of Nightshade Vegetables (Solanaceae Family) Culinary Vegetables

Bell pepper (sweet pepper) Italian pepper Chile pepper Examples of varieties:

fresh Anaheim Fresno Jalapeño Pimiento / pimento Poblano Serrano

dried Ancho Cascabel Chipotle Guajillo Habañero Pasada Pasilla Eggplant Potato Tomato Tomatillo

Spices Cayenne Chili powder (some ingredients of) Curry (some ingredients of) Paprika

Sauces Ketchup Tabasco

Culinary Fruit Cape gooseberry Goji berry Pepino Tamarillo

Other Tobacco

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I had no idea, never heard of the nightshade list....now I'm wondering about tomatoes and red/green peppers which are a staple in my diet and I'm still having issues....another elimination on the horizon! Thanks for sharing this info, I feel better every day that I might figure myself out (since my dr. are completely worthless) – Kelly Apr 16 2011 at 13:44
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Ripe tomatoes contain no detectable levels of tomatine, the poison found in tomato plants. However, green tomatoes do contain trace levels, and the tomato plant body contains a significant amount of tomatine.

Most commercially grown potatoes (not a nightshade, but related) contain low levels of solanine and chaconine. Though the compounds are partially broken down during cooking (actually, only deep frying) I would recommend avoiding conventional potatoes if you're looking to eliminate everything resembling a poison in your food supply.

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I eliminated nightshades to see if I had a problem and was surprised at the violent reaction I had to red bell peppers. In bed for 2 1/2 days with a migraine...aw man, I love bell peppers. I haven't tried to reintroduce potatoes and tomatoes yet, but will try a SMALL quantity in a couple months. I've never eaten eggplant so won't try it now.

Food sensitivities are very personal and the only way to really figure it out is to eliminate the suspected anti nutrients and reintroduce them.

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Do we have a nighshade list here in its entirety?

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--EDIT--

Well, 1.5 years has passed and I finally looked at the evidence on nightshades! Here is my writeup:

http://paindatabase.com/nightshades/

My conclusion is that nightshades are probably not terrible for most people, but you can't figure out if you are one of the lucky nightshade sensitives unless you try to eliminate them for a few weeks. The mechanisms connecting nightshades to pain are vitamin D3 / calcitriol in certain nightshades, as well as propagation of acetylcholine overload at nerve junctions. There are very few human studies on this subject, so it's pretty much all up to you and self-experimentation. Be strict when eliminating, or else you'll never know.


I think the latest on nightshades depends on the nightshade in question. Journal articles on potatoes vs peppers vs etc give very different findings depending on the food and condition. Sometimes anti-inflammatory, sometimes bad for the gut, sometimes bad for joints, etc.

Nightshade consumption may depend largely on experimentation with elimination diets, moreso than finding whether one's ancestors ate it. I, personally, wish nightshades would just get together and decide if they're good or evil!

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Wow, that's a great write up on nightshades. – Wcc Kamal Stabby fan Mar 20 2012 at 2:35
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Really digging your writing style, Kamal! – January Mar 20 2012 at 6:44
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I find nightshades (and fermented dairy too) are tolerated well once I ditch wheat. Gluten and zonulin are not a happy combination!

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You're saying that the nightshades contain zonulin? – Namby Pamby Jul 6 2011 at 18:45
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A fav quote.... forgot by whom ..................

‎"Tolerated is not optimal, why is that so difficult to understand"

( for example .... Tolerate is that you can take x amount of poison and not die IMO)

~s

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Quote is from Dr Kurt Harris of PaleoNu ;) , it's one of my favorite too. On the favorite quote thread, it's the opening quote – Stephen-Aegis Sep 6 2010 at 0:30
But don't forget Hormesis, that some things toxic or detrimental in larger quantities are outright beneficial (rather than tolerated) in small doses. Some nightshades have been implicated as potentially fitting into that category in studies. – Logan Mar 18 2011 at 15:03
I always forget that quote. I'll make a big poster of it. For sure. – Korion Nov 2 2011 at 13:47
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There are definately people who have seen changes with elimination.

on a personal level, Ive done a couple strict elimination routines. Fructose affects me. Gluten ruins me.

Dairy and Nightshades, no noticeable changes or effects. Mood, Energy, Weight, Skin, all seem good. to be fair, its Raw/Pastured Dairy only. I did not test with commercial grainfed dairy, for similar reasons to why I do not eat Grainfed Beef.

I know Dairy is a shorter term evolutionary thing. Some people have developed to be able to tolerate it just fine.

Nightshades are trickier, I classify them with Nut Allergies, Egg Allergies and other outliers. Im not convinced yet that they are a broad spectrum allergy to the entire population... However, I do believe, they, like the others have the potential of allergy for Everyone when introduced into the system while the gut is permeated.

In my opinion Gut Health should be priority #1. With that taken care of, many allergies simply disappear.

Unfortunately, some, once obtained, are here to stay.

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