Is it healthy to take 1500 mg of lysine a day during a cold sore?

Question

I read about all these people that take up to 1500 mg of lysine daily and that amount is the only way that it works to help defend against cold sores, but is that healthy? If I did that, would I get a disease some day from having so much lysine in my system?

Answer 1

I wouldn't take it on a regular basis, but Amino Acids are just the building blocks of proteins, so it should be safe enough. Your body should be able to convert Amino Acids into proteins, then in turn into other Amino Acids if needed... I but I would recommend moderation in all things. Good luck!

Answer 2

I take 500mg a day but if i know a cold sore is coming on, i take 500mg or 1000mg only for a couple of days or so and it usually works.  I know, i don't like taking such a high dose even on those days, but i've never had any problems.