Can flax seed cause a false positive?

Yes, flaxseed can potentially cause a false positive in certain drug tests due to its high content of certain compounds, such as cannabinoids. These compounds may mimic substances that are tested for, leading to inaccurate results. However, the likelihood of this occurring is relatively low, and most standard drug tests are designed to minimize such occurrences. If you are concerned about drug testing, it's best to consult with a healthcare professional.