Tag: B vitamin safety

The human body excretes excess amounts of thiamine in the urine, which is a key reason why oral overdose is extremely unlikely. This fact is central to understanding whether too much thiamine mononitrate is bad for you and what to know about high-dose supplementation.

According to the National Institutes of Health, there is no established Tolerable Upper Intake Level (UL) for oral thiamine (Vitamin B1) because no negative effects have been reported from high intake. This water-soluble vitamin is generally considered non-toxic, as the body excretes any excess through urine.

Did you know that the body only stores small amounts of vitamin B1 (thiamine)? This is key to understanding whether **is vitamin B1 safe to take every day**, as excess is typically flushed out, but there are still factors to consider regarding dosage and individual health circumstances.