being a nutritionist mentor for a group or family dealing with childhood obesity

Write an essey about someone who will serve as a mentor and share their knowledge about nutrition and childhood obesity with someone who needs help.
You can either write to a group of people who have a particular problem within the field that they might be facing, and write for the purpose of motivating this group of people to overcome this particular problem; or you can also write about a nutritionist assisting children and parents overcome childhood obesity.