Rainbow's Hyunyoung gave her enthusiastic two thumbs up to sweet potatoes!

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"Devouring sweet potatoes during filming..." she posted to her Instagram. "So delicious..."

The yellow tuber seems to be gaining some serious star-powered endorsements, first from Girls' Generation's Seohyun and now Hyunyoung.�

Maybe the next time you go to the market you should some up for yourself?