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Yes. When I google niacin supplements, 4 out of the 5 google shopping results have 500mg (35x RDA). Beyond 1000mg niacin can have bad side effects such as the v
by cpncrunch 3y ago
Yes. When I google niacin supplements, 4 out of the 5 google shopping results have 500mg (35x RDA). Beyond 1000mg niacin can have bad side effects such as the vision loss mentioned in this article. Jamieson's niacin supplement has 500mg too which surprised me.