Niki is an award-winning nutritional therapist, functional medicine practitioner and transformation coach, helping people to optimize energy. In 2004 she co-founded The Optimum Health Clinic, one of the leading integrative medicine clinics specialising in fatigue related conditions.

The results with patients at the clinic were published as a preliminary study in 2012 in the British Medical Journal Open. In August 2015 she hosted the largest ever free online health summit on overcoming fatigue interviewing 29 world leading experts on optimizing energy with over 30,000 attendees.