"They have been found in 44 plant families, but no essential metabolic function has been established for them. They are precursors of benzo[c]phenanthridine alkaloids , which are the active principal ingredients of many medicinal plant extracts. CAs have been implicated to have a possible protective role against insect predators, injuries, and nitrogen detoxification. They have been shown to promote plant tissue growth, somatic embryogenesis from in vitro cultures, and flowering. CAs inhibit indole-3-acetic acid oxidation and enhance ethylene biosynthesis. They have also been shown to enhance synergistically various effects of gibberellins ." 
Katie – it’s great to see some accurate, well-researched coverage of the benefits of fasting. I’ve been practicing a form of intermittent fasting (one large meal each day) for about 5 years and feel fantastic! Interestingly, when I incidentally fell into the lifestyle while traveling years ago I was actually unaware of its mental and physical benefits. I was simply struck by how much more energy and mental clarity I had, so have since kept it up. It’s fascinating to hear of all the research supporting my own personal experiences!