In disappointing news for chocolate lovers, researchers have found that contrary to an earlier report, eating dark chocolate will not improve your vision.
The earlier report suggested that certain aspects of vision improved within a couple of hours of chocolate consumption. The new study showed no changes in vision or blood flow to the eyes after consuming about three quarters of an ounce of dark chocolate. Both studies, however, involved only a small number of volunteers.
With two similar-sized trials yielding opposite results, “more research is needed,” said the authors, led by Dr. Jacob Siedlecki of Ludwig-Maximilians-University in Munich. “As this small study does not rule out the possibility of benefits, further trials with larger sample sizes would be needed to rule in or out possible long-term benefits confidently,” Siedlecki and his colleagues write in JAMA Ophthalmology.