In my opinion "Double-check" is rather colloquial, try "review" in its place. Also, because you are asking for something to be done, personalize your final thank-you with something like " I appreciate your prompt attention", which sounds more meaningful than the common thank-you.
Otherwise...
blame for their obesity? Is the child themself responsible for their obesity, or are the parents for not providing a home environment condusive of health?
Can a child who has been obese their entire life change themselves without any prompting from their parents, peers or anything at all...