customize a fitness training workout program and diet plan

A nutritionist is an expert in the use of food and nutrition to promote health and manage diseases. These specialists advise people on what to eat in order to lead a healthy lifestyle or achieve a specific health-related goal instructor lead, instruct, and motivate individuals or groups in exercise activities, including cardiovascular exercises (exercises for the heart and blood circulation), and strength training, and stretching. They work with people of all ages and skill levels.