Biomedical testing entails evaluating different aspects of bodily functions to gain insights into an individual's health status. This process assists practitioners in tailoring personalised health plans for their patients. Functional testing covers a wide range of bodily functions, including digestion, absorption, detoxification, mitochondrial health, hormonal balance, inflammatory response, and allergen/toxin levels. Unlike traditional blood draws, which can be distressing for some individuals, alternative sample sources like hair, urine, stool, and finger prick blood spots are utilised for easier access to important information.