Thank you for the information. We live in Redding California and he has an excellent doctor by the name of Fredricks. He operates our of the Training hospital in San Francisco. My husband just got out of hospital here with signs of dementia, which they described to me as a brain seperation caused by his ammonia level. There is so much inforation thrown at me that I can't digest it all. They said no red meat, now he can have some, no salt, now his sodium level is low, no sugar, that still stands, fruit, but only sour fruit, on and on. They said he had about eight years, but now that has changed. I just seem to be between a rock and a hard place. Than you again, I need to get all the information that I can and be able to understand it.