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You may make a "high" claim when your dietary supplement contains at least 20% of the Daily Value (DV) (i.e. the Reference Daily Intake (RDI) or Daily Reference Value (DRV)) of the nutrient that is the subject of the claim per reference amount customarily consumed. You may make a "good source" claim when your dietary supplement contains 10 to 19% of DV | https://www.itbhdg.com/dietary-supplements/