Disclaimer: The results obtained from using the Free to Feed Lateral Flow Device (LFD) are solely for the purposes of this human factors study and are not intended for diagnostic use. The LFD has not been validated for clinical or diagnostic purposes. Participants should not use the results from this test for any medical decisions or actions. This study aims to assess the usability and design feasibility of the LFD for potential future applications. Free to Feed disclaims any liability for the use of the test results outside the scope of this study. Always consult a healthcare professional for medical advice and diagnosis.