All nightshade plants, including those growing in the wild, contain toxic alkaloid compounds. In foods, like tomatoes and peppers, these compounds are only found in small amounts so most people can process and remove them from the body and no harm is done. In wild plants, these compounds are found in a much higher concentration, sometimes causing death if ingested.
In people that cannot process these alkaloids very well, (and since many people consume nightshade vegetables on a daily basis) these compounds can build up in the body and begin to cause a host of issues. Of course not all people are sensitive to nightshades so don't get too concerned here that you need to eliminate yet another food from your diet! If you suspect that your body might not be tolerating nightshades then do a simple elimination diet and keep them completely out of your diet (yes, that means 100%) for 3 weeks and then add them back in, noting how you feel.
- joint pain
- GI upset