However, high doses of vitamin B1 supplements may cause side effects such as stomach upset, nausea, and skin irritation. It is important to consult with a healthcare professional before taking any ...

However, exceeding recommended doses can lead to unwanted side effects. From mild to severe, vitamin B overdose symptoms ...

Each patient received both vitamin B1 and a placebo in two periods of ... the treatment has proven to be completely free of side effects. "However, one must accept that thiamine smells and tastes ...