Potatoes do what?!

I was in line at the grocery store when I looked over and saw this:

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Hmmm… “It takes just seconds to look 12 years younger!” That’s impressive.

“Amazing Asian fruit lowers blood sugar 19%!” Wow!

“Discover the herb that cures winter colds!” Intriguing.

Wait… “Potatoes cure insomnia!” What?! Well, that’s certainly news to me!