Dr Jarrett is Director of Science and Research at Heights, a leading supplement company, overseeing the product lifecycle from science-led formulations to assessing efficacy in human clinical trials. He holds a PhD in Human Nutrition and Population Health and previously conducted clinical research on the NHS. Dr Jarrett has published in leading scientific journals including AJCN and his research has won two parliamentary awards. He is a member of the Royal Society of Biology and the Parliamentary and Scientific Committee.