Tag: Thiamine injections

According to the Harvard T.H. Chan School of Public Health, there is no established toxic level for high thiamine intake from food sources alone. However, when considering supplements, understanding what are the side effects of high B1 becomes crucial, as risks can emerge, especially with very large doses or injectable forms.

According to the National Institutes of Health, because excess amounts are typically excreted in the urine, adverse effects from oral thiamine are rare. However, some individuals may experience mild reactions, and more serious issues, particularly allergic responses to injections, can occur when taking thiamine.