What are Nightshades and Are They Good for You?


Have you ever heard of nightshades? To be honest, it's a term I didn't hear until recent years, so I completely understand if you haven't heard of it yet. These are simply a group of fruits and vegetables in the family of plants known as "solanum". Plenty of rumors abound as to whether these shady garden growers are good or bad for you, but I'm here to give you the basic insight on what they are.


Which fruits and veggies fall into the nightshade category?

Tomatoes – You'll get plenty of vitamins A and C plus lycopene, the antioxidant that can reduce inflammation markers and lower your risk for health issues.

Eggplants – With plenty of dietary fiber, eggplants keep things moving and could contribute to heart health.

Potatoes – Potatoes possess plenty of potassium, manganese, and vitamin B6, though the skin should be on to get the most out of them (just clean it vigorously!).

Peppers – All peppers have an abundance of vitamin C and can help you better absorb iron. In the case of chili peppers, the capsaicin they contain ironically may quell heartburn.

So, what about those rumors? They have largely to do with causing inflammation. Everybody is different, so this isn't a hard and fast rule. Nightshades contain alkaloids, which may affect those with certain conditions differently. The same goes for another compound they contain called solanine that can irritate arthritis pain, cause inflammation, or lead to digestive issues. It might be best for those with autoimmune diseases to eliminate them from their diets.

Those with inflammatory bowel disease (IBD) may want to avoid them as well. Leaky gut sufferers may find eating these foods causes them more gastrointestinal distress. If you've been diagnosed with autoimmune disorders or IBD, you can try an elimination diet to avoid nightshades and see if that helps you feel better. Journaling how you feel during the elimination diet and then as you re-introduce is a pro-tip to making the diet a success, and finding out if you need to continue with it.

For those that can eat nightshades without aggravating health conditions, you'll be treated to a diet rich in vitamins and minerals plus gobs of fiber. If you do find eliminating nightshades helps you feel better, and you don't have any conditions you're aware of, it might be time to visit your doctor to determine the root cause.

A lot of people can safely eat nightshades without consequence. For those that can't, you can substitute potatoes for sweet potatoes, use pesto sauce rather than tomato sauce when making Italian dishes, eat citrus fruits, and fill your plate with leafy greens. Another way to lower alkaloid content in nightshades is to avoid green tomatoes, peel your potatoes completely, and cook them thoroughly before consuming.


Join me in my facebook group @Hit Me Up with Healthy Swaps to learn about incorporating more healthy swaps into your day to day life!

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© 2019. All Rights Reserved. Disclaimer: The content of this website is based on research conducted by Karen Quinlan, unless otherwise noted. The information is presented for educational purposes only and is not intended to diagnose or prescribe for any medical or psychological condition, nor to prevent, treat, mitigate or cure such conditions. The information contained herein is not intended to replace a one-on-one relationship with a doctor or qualified healthcare professional. Therefore, this information is not intended as medical advice, but rather a sharing of knowledge and information based on research and experience. Karen encourages you to make your own health care decisions based on your judgement and research in partnership with a qualified healthcare professional. These statements have not been evaluated by the Food and Drug Administration. The information on this website is not intended to diagnose, treat, cure or prevent any disease.