Greetings, We have been told LEF (Life Extension Foundation) is obtaining the new NADH from an 'unknown' source in Europe and the content/results are 'unstable'. There is some type of 'war' i.e. lawsuit for breaking a patent, going on between Menuco (original mfrgs of NADH) and LEF; according to Menuco a number of products sold by LEF are being investigated. Well, who knows what's going on; afterall, if Menuco says LEF's products are questionable, it's apparent to me that Menuco might very well have a vested interest in seeing LEF fail since they're (LEF) now purchasing the NADH from someone else. Could be a 'War of the Roses'..... Here's my question: if any of you are currently taking the new, lower-priced NADH from LEF I'd like to know if you have noticed any change in your symptons or results compared to the old NADH? We can't argue with the better price but we'll wait to hear from you before we order the 'new NADH'. Best Regards, Lisa Carper (for Jeff 45/7) [log in to unmask] --