Thanks for the tip on bonito, Jim. I'm a heavy user of fish muscle, mostly from shrimp, tuna, salmon, and lutefisk (Norwegian cod). Just learned about a Washiington DC restaurant that prepares a tuna steak so it looks and tastes like filet mignon, which I avoid as much as possible. That bonito and the other fish meats emulate ACE inhibitors is not a benefit for me -- I'm already taking the daily maximum of 40mg of Lisinopril, thanks to my nephrologist's concern for preservation of residual kidney function!
Martin