How much consumed caffeine is actually absorbed? Bioaccessibility and bioavailability in energy drinks, infusions and soft drinks ScienceDirect Antioxidant effects after coffee enema or oral coffee consumption in healthy Thai male volunteers S Teekachunhatean, N Tosri, C Sangdee, R Wongpoomchai, W Ruangyuttikarn, C Puaninta, S Srichairatanakool, 2012 Can Coffee Affect Glutathione? Exploring the Relationship Between Coffee Consumption and Antioxidant Levels Cymbiotika CYMBIOTIKA Cognitive Function In Depth Linus Pauling Institute Oregon State University Think coffee dehydrates you? Not true. In fact, if you drink fewer than 10 cups of coffee or tea per day, you won't get dehydratedand you'll benefit from powerful bioactives like Frontiers Phenolic acids in fermented foods: microbial biotransformation, antioxidant mechanisms, and functional health implications