Ross and Carrie prick their fingers, bleed onto some card stock, and send it off to Everlywell, to be evaluated for various food “sensitivities.” Will Carrie’s documented food reactions show up in her blood? Will Ross confirm that he’s sensitive only to that one thing he ordered for lunch one time? And will the results be the same if the same blood is sent off twice? Plus: is Carrie a supervillain who drains her loved ones of vital life fluids? Find out!

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