are not automatically better.
Mayo Clinic explains that healthcare professionals may prescribe doses higher than 600 IU for certain conditions, but this is usually done for a set amount of time with monitoring of calcium and vitamin D levels.
That difference matters. A prescribed treatment plan is not the same as self-medicating with large doses every day. Taking more than needed does not guarantee more benefits, and it can increase the risk of harm.
A safer rule is: do not copy supplement routines from social media. What works for one
