A member asked:

Is it dangerous to take lysine as an oral supplement? can it really cause gi and kidney problems?

A doctor has provided 1 answer
Dr. Randy Baker answered

Specializes in Holistic Medicine

Appears safe but...: Lysine is generally considered safe by most authorities. There are reports that high doses can cause gallstones and increase cholesterol in animals but there is not evidence it does so in humans- see http://healthyeating.Sfgate.Com/lysine-safety-5003.Html there is one report of a woman who developed kidney failure after taking 3000 mg/day for 5 years, but that does not prove lysine caused it!

Answered 7/30/2018

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