A 12 year old boy is on a cross-country mission to help families eat better and get in shape together.

Marshall Reid and his mother Alex co-wrote a book called Portion Size Me. Marshall actually kicked off the project when he was 10-years-old!

Now, he and his family are touring the country, towing their special airstream trailer and making new friends along the way, including the crew at the Today Show, and celebrrity chef Jamie Oliver!

You can follow the Reid family's Portion Size Me tour online through their website, facebook page and YouTube channel.

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