Eggplant seeds (and they have many)Ā , which are responsible for the slightly bitter taste of the purpleĀ berry. The concentration of nicotine itself is about 100 nanograms per gram of eggplant, compared with 2 milligrams of nicotine per cigarette. So, if youāre willing to eat 20 000 grams of eggplant (around 20 eggplants) for breakfast, you couldĀ . Of course, eggplants arenāt alone in containing nicotine:Ā Ā do too! There is anĀ allegation floating around that these "nightshade"Ā vegetables (so-called because they can grow in shade), Ā vegetables should be shunned, , because they cause inflammation. There is no scientific evidence for this and avoiding these vegetables unnecessarily restricts diets. It should be mentioned that , is quite distinct from the nightshade vegetables and should be avoided due to its potentially dangerousĀ content of atropine. Incidentally, the name "belladonna" means "beautiful woman" in Italian; Roman ladies treated their eyes with the juice of the plant'sĀ berries to dilate their pupils which supposedly made themĀ look more beautiful.