I myself don't consume Cheerios or any product from that pervy looking Quaker guy, however i have had Joes Oats from Trader Joes.
Going to see if it comes from the same mega factory. Trader Joes does not like to reveal its manufaction sources. Instead they try to get you to go away with their "distributed by."
I've been toking on organic steel cut oats from a trusted health food grocery store, but still going to ask them about their source.