Some people take thousands of milligrams of vitamin C a day as a “megadose,” while others say that’s risky. So which is it? Let me lay it out plainly.
✅ Megadoses aren’t clearly better and can upset stomach/kidneys
✅ Steady, moderate amounts are the realistic move
Vitamin C is water-soluble, so it doesn’t stack up in the body — the excess simply leaves in your urine. “More is better” is only half true here: since the extra is mostly excreted, very high doses (thousands of mg) don’t reliably do dramatic things for colds or illness, and they can bring stomach upset or, at high doses, a higher kidney-stone risk. Rather than chasing big numbers, a steady, sensible amount is more practical.
The “the more the better” idea is half right at best. Since the excess is flushed out anyway, there’s little point in huge doses — and they can be rough on a sensitive stomach. Split a moderate amount across the day and you’re set.
Frequently asked
Q. Does it prevent colds?
Less “prevent” and more “possibly shorten symptoms a little” once you’re already sick. It’s not a magic shield.
Q. When should I take it?
Because it’s water-soluble, splitting it between morning and evening helps you keep steadier levels.
This article is for general information and does not replace professional diagnosis or treatment. If you take medication or have a health condition, please consult a healthcare professional. Some links may be affiliate links.
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