September 20, 2024
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Completed comprehensive updates to the Introduction and the sections on andrographis, echinacea, elderberry, ginseng, magnesium, melatonin, N-acetylcysteine, omega-3 fatty acids, probiotics, quercetin, and selenium.
June 28, 2024
Updated the sections on vitamin C, vitamin D, vitamin E, and zinc with recent research, and removed two clinical trials that have been retracted.
January 18, 2023
Updated the Introduction and herbs sections with recent clinical trial results and other research. Also updated the magnesium section with newer information from Clinicaltrials.gov.
May 13, 2022
Removed a small clinical trial from the vitamin D section because it has been retracted.
October 5, 2021
Information about the safety and effectiveness of magnesium, quercetin, selenium, and vitamin E dietary supplements has been added and information for the other ingredients has been updated to reflect newly published research.
August 17, 2021
Revised text to clarify in which foods vitamin D is naturally present.
August 4, 2021
Revised text to state that the FDA has concluded that dietary supplements providing no more than 5 g/day EPA and DHA are safe when used as recommended. In addition, updated the reference for FDA’s Qualified Health Claims: Letters of Enforcement Discretion.
June 18, 2021
Updated introduction and sections on andrographis, NAC, omega-3s, vitamin C, and vitamin D to reflect newly published research.
