system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 why can't vitamin supplements replace a balanced diet?

All vitamin pill bottles says they can't replace a balanced diet, yet they contain all the nutrients we need to function.
gpt
Hi,
No they don't contain all the nutrients, far from it.
You need a lot more: lipids, proteins, some specific aminoacids, sugars, minerals, some fibers.
Vitamins are essential but inly a small portion of what a human body needs to function properly :)