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This includes people who are pregnant, breastfeeding, managing serious chronic conditions, or being treated for active malignancy

J Biol Chem (2005) 280(35):3098493.10.1074/jbc.M504699200 152 Carter-SuCSchwartzJArgetsingerLS

J.ChhabraS.PhillipsM.et al (2010)
The good news is there are no [known] contraindications unless you are allergic to some of the components to taking collagen supplementation and few side effects, says Manning

Food and Drug Administration, 2021)
