As an act of service to help those in medical need of blood plasma, I donate such twice a week. In order to do so, my blood plasma level has to be 6.0 or above. Even though I am in very good health for a 66-year old man, my body was unable to meet this requirement after donating plasma twice a week for about 5 months. No matter how much protein I ate or in whatever form it was, I still kept being rejected for not having a blood protein level high enough to meet the lab's requirement. After doing some research, I learned about the importance of consuming essential amino acids in order to help my body process the protein I consumed and that one's production of essential amino acids decreases as one ages. I learned that no matter how much protein I took into my body, if I didn't have sufficient amino acids to process the protein, my protein blood level would remain too low to enable me to donate plasma twice a week. After 1 week of taking Advanced Amino everyday as prescribed, my protein blood level was tested and found to be 7.4! My protein blood level has never been more than 6.5, so having it be 7.4 is quite an accomplishment. So far I have experienced no negative side effects from Advanced Amino and continue to feel very good in all aspects of my health. I am now once again able to donate blood plasma twice a week and help those with a medical need of human blood plasma. Thanks, Advanced Bionutritionals!