Am J Nurs. 2022 Dec 1;122(12):56. doi: 10.1097/01.NAJ.0000904100.46205.b5.
According to this study: The labeling on dietary supplements marketed to support or boost the immune system is often inaccurate and inconsistent with Food and Drug Administration requirements.Quality control measures appear to be insufficient for most of these products.
marketed to support or boost the immune system marketed to support or boost the immune system marketed to support or boost the immune system