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Vitamin C

Also called ascorbic acid

What Huberman said

Huberman says there is some evidence, 'and it's not great, frankly', that six to eight grams of vitamin C a day can perhaps delay the onset of a cold or shorten its duration. He calls these very high doses with not a very robust effect.

Doses, as he worded them

  • “six to eight grams, grams, so that's 6,000 to 8,000 milligrams of vitamin C per day”[1]

    doses in the evidence he describes (not a recommendation)

Quoted, not prescribed. Talk to a doctor or pharmacist first if you take medication, are pregnant or have a health condition.

Cautions he mentions

  • For most people not accustomed to much vitamin C, six to eight grams will likely cause significant gastric distress.[1]
  • The evidence is 'not great, frankly'; it is 'not a very robust effect'.[1]

Where he said it

  1. 1
    “There is some evidence, and it's not great, frankly, that points to the fact that taking six to eight grams,”

    How to Prevent & Treat Colds & Flu

    Episode · 01:42:20 · 2024

    Watch from 01:42:20Episode page

This page reports what Andrew Huberman has said. It isn’t medical advice and NSDR.co isn’t affiliated with Huberman Lab. Talk to a doctor or pharmacist first if you take medication, are pregnant or have a health condition. Safety information