People hire nutrition coaches to help them lose weight, gain weight, stay fit, create a healthier nutritional lifestyle and to help clients stick with their prescibed meal plans or increase or decrease specific nutrients and vitamins. A nutrition coach may also help with many eating disorders, diabetes, celiac diseasee, and crohn's disease. They may also be able to assit people with mental health problems such as ADHD, as well as some types of cancer, by providing dietetic guidance.