Study participants who consumed flavanol-rich dark chocolate experienced no beneficial effects in retinal perfusion or visual function compared with those who consumed milk chocolate.
The randomized, controlled, masked double-blind crossover study included 22 participants with normal binocular function and no ocular disease. Each participant consumed either 20 g of flavanol-rich dark chocolate, totaling 400 mg flavanol intake, or 7.5 g milk chocolate, with a total flavanol amount of approximate 5 mg.
Before and 2 hours after chocolate consumption, researchers performed a binocular assessment of
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