Great information. I added a quote from a website concerning carnosine. There is a school of thought that animal only proteins and nutrients are not necessary and raw veganism is the answer.

Here is the quote from the website: "Upon digestion, carnosine is broken down in the gastrointestinal tract into its constituents. Yes, some intact carnosine does escape the GI tract freely but that small amount is quickly broken down in the blood by the enzyme carnosinase. Carnosinase hydrolyzes carnosine and other dipeptides containing histidine into their constituent amino acids. In other words, after consuming meat, all of the carnosine that was ingested is converted to beta-alanine and histidine. Then, oddly enough, the amino acids are converted back to carnosine in the muscles and used or transported where needed. The entire process of carnosine synthesis is not entirely understood, but it's worth noting that consuming carnosine from meat is unnecessary, as it will be converted into beta-alanine and histidine anyway, both of which are available in many raw whole foods. " - http://www.skinnylimits.com/blog/carnosine-and-raw-veganism/