Yes, just like every single vegetable you buy at the store contains traces of arsenic. Nicotine is present in plants because it acts a pesticide and deterrent to bugs who would eat it. Which is why Nicotine was used in rat poison to kills rats. There's no doubt that Nicotine may be useful in killing parasitic viruses, but putting in your body every day as way to be "Healthy" is likely to harm just as much to help you.