Hi Michale, thank you for your generous feedback and sharing your experience. I also used AAKG which is more bioavailable form of arginine. The taste of both was challenging for me. I didn't have taste problem with citruline malate. I am glad you use intermitten fasting successfuly. Another advanatage of citriuline over argine was the ketosis impact. Around 6 gram of arginine reduced my ketones but 5 g of citruline has no effect. I prefer staying in ketosis during the fasted period. I hope you notice other benefits of nitric oxide in your life.