Yulia is 24 years old she has been fit and lean her whole life and recently has begun to put on an unhealthy amount of weight she goes to the doctor because she is not eating any differently than she has before yet she is now heavier what will you use doctor and most likely tell hera. adults need fewer calories than kids and teens, so she needs to eat less. b. adults need more calories and kids and teens, so she needs to eat more. c. adults are heavier than kids and teens. d. adults need more exercise in kids and teens.