Harvard Health Blog

Can dark chocolate improve vision?

By: Monique Tello, MD, MPH, Contributing Editor It was very fitting: I had just finished a square of 86% cacao dark chocolate when I got the email about yet another study suggesting health benefits of dark chocolate. In addition, I had just returned from vacation in Guatemala, the land of the Maya. It was the Maya who discovered the usefulness of the seeds of the cacao plant in 2,000 BC, seeds they roasted and…

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