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As you may recall in the Personal Experiences thread here on LC a number of people (tentatively) attributed their tendonitis to taking NR [nicotinamide riboside].
Does ingesting nicotinamide riboside (NR) supplements have a deleterious effect on tendons? I'm looking for scientific studies or sound reasoning (less preferable but still could be interesting).
There is no data to suggest that is the case.
The placebo controlled safety study https://www.nature.com/articles/s41514-017-0016-9 found no differences in musculoskeletal adverse side effects between active and control groups.
