Coffee and herbal teas may not be as beneficial during fasting, because as you said, they may be more "substantial". I was watching a compilation clip about in

Coffee and herbal teas may not be as beneficial during fasting, because as you said, they may be more "substantial". I was watching a compilation clip about intermittent fasting [0] recently. According to Dr. Rhonda Patrick, coffee and other drinks than just plain water (and maybe vitamins and supplements as well?) break the fast by starting up some metabolic enzymes [1][2]. I guess there goes my round the clock tea gulping. :| [0]: https://www.youtube.com/watch?v=JxjMdqevE88 https://www.youtube.com/watch?v=JxjMdqevE88 [1]: https://www.youtube.com/watch?v=JxjMdqevE88&t=13m17s https://www.youtube.com/watch?v=JxjMdqevE88&t=13m17s [2]: https://www.youtube.com/watch?v=JxjMdqevE88&t=20m10s https://www.youtube.com/watch?v=JxjMdqevE88&t=20m10s