Furthermore, some supplements marketed for "thyroid support" contained actual thyroid hormones , which can pose a risk if the hormone amounts are less or more than needed
Vitamin C side effects in general can potentially include: nausea and vomiting heartburn stomach cramps headaches flushing Youre more likely to experience side effects if you take a high amount, especially in one large dose
10.2903/j.efsa.2017.5003 45 El-DeebO
Talk with your provider about getting a prescription
PMID: 40353578 ) Bettge K, Kahle M, Abd El Aziz MS, Meier JJ, Nauck MA (2017) Occurrence of nausea, vomiting and diarrhoea reported as adverse events in clinical trials studying glucagon-like peptide-1 receptor agonists: a systematic analysis of published clinical trials
One could argue that the low-dose versions prepared by compounders for ME/CFS/long-COVID patients fit that bill