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We can diverge on an abundance of fascinating and insightful conversation that always stimulates more conversation or research at our potlucks, one of them being about nightshade produce. For a group composed of knowledgeable, friendly and insightful mostly vegans and vegetarians, I’m surprised that very few of them seem to knew about the detrimental affects of nightshade produce to their health. Of course, there’s still not enough research but if you suspect you can be sick, it could save your life. One of them perked up when she recalled that a family member had a history with heart disease because he ate a lot of nightshade produce.
Firstly, what is nightshade produce exactly?
A) It’s produce that prefers a lamp with a nightshade to hang over it, duh!
B) It’s a medley of produce, herbs, shrubs and trees that grow at night.
C) It’s a drug that is grown at night. Some of the most common are mandrake, tobacco and belladonna (among the most deadly.)
D) Both B and C.
D is correct.
Nightshade produce consists of 2,800 species of plants, many with different properties. There’s a group of compounds in nightshade produce called alkaloids which are used for understanding adverse effects when nightshade produce is eaten as food. In chemical terms, alkaloids are easy to identify because they all have at least one ring-like structure that contains the element nitrogen. Plants produce alkaloids as a regular part of their biochemical activity, and the purpose of alkaloids are to help protect the plants from insects that would eat them.
Four basic types of alkaloids are found in nightshade plants. These types are: the steroid alkaloids, the tropane alkaloids, the pyrrolizidine alkaloid and the indole alkaloids.
Types of nightshade produce and their effects -
Potatoes (not sweet potatoes), tomatoes, many species of sweet and hot peppers,eggplant, ground cherries, garden huckleberry, tamarillos, pepinos, naranjillas, pimimentos, cayenne pepper and paprika.
The steroid alkaloids in potato – primarily solanine and chaonine - have been studied for their health effects in two areas. First is their ability to block activity of an enzyme in nerve cells called cholintesterase. Many of the alkaloids found in nightshades possess this kind of activity, called cholinesterase inhibition. If the activity is blocked, the nervous system control of muscle movement becomes disrupted. Symptoms of muscle twitching, trembling, paralyzed breathing, or convulsions can result.
Some researchers have speculated that nightshade alkaloids can contribute to excessive loss of calcium from bone and excessive depositing of calcium in soft tissue. For this reason, these researchers have recommended elimination of nightshade foods from the meal plans of all individuals with osteoarthritis, rheumatoid arthritis, or other joint problems like gout to determine if these foods are contributing to the problem.
This isnt’ to say that you should start eliminating nightshade produce from your pantry and shopping list as you would those nasty food additives like high fructose corn syrup. The health benefits of some nightshade produce should be encouraged to eat not avoided as they are all great sources of fiber - tomatoes contain antioxidents, potatoes contain Vitamin C and eggplant can be a source of Vitamin K. However, if you suspect you have a neuromuscular or concern with your bones and joints, consult your physician or nutritionist abot eliminating nightshade produce temporarily. Alkaloids can be reduced by nearly half or half just by cooking for them but it is suggested you avoid them completely if you are particularly sensitive to cooking or eat them in moderation if you prepare mostly raw foods.