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Is 1000mg of NMN too much? A look at safety and optimal dosage

According to several human clinical trials, NMN has been safely tolerated at daily doses up to 1,200 mg for short periods. The question, "Is 1000mg of NMN too much?" is often asked by those exploring higher dosages, but current research suggests it is generally well-tolerated, though it may not always be necessary for desired effects.