Does nicotine gum show in urine tests?

The presence of nicotine in the body can be seen through the detection of cotinine, the major metabolite of nicotine in human urine and blood and can be detected 7-21 days depending on usage.

However, there are several other potential sources of cotinine in urine, for example, exposure to secondhand smoke, the use of NRT, exposure to nicotinic pesticide (approved for organic farming!) and consumption of other members of the same family of plants as tobacco - potatoes, tomatoes, peppers and aubergines (eggplants).

Private companies offer other tests claimed to detect the metabolites of other chemicals present only in the tobacco used in cigarettes!