Additionally, some users may experience mild side effects such as nausea or stomach upset. Overall, we highly recommend Nutricost’s Vitamin B1 (Thiamine) 100mg, 120 Capsules to anyone looking ...

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 ...

Over-supplementation can also cause mild side effects like stomach upset or nausea, says the expert. Consuming vitamin ...

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