Multivitamin: what the biggest YouTube health voices say

Dr. Eric Berg’s take: Advises against synthetic multivitamins made in labs, preferring natural whole-food vitamins, since isolated vitamins A, D and E may cause problems.

Huberman Lab’s take: Considers a basic, standard-dose multivitamin a reasonable strategy for the general population, citing the COSMOS trial's cognitive improvements.

Thomas DeLauer’s take: Prioritises food first, but uses a staggered-release multivitamin stack occasionally, such as when travelling, as a foundational nutrition backup.

FoundMyFitness’s take: Views a multivitamin as a safe, low-risk nutritional insurance that fills gaps and may support brain aging, though it cannot cover everything.

Dr. Alan Christianson’s take: Suggests getting thiamine mainly from foods plus a thyroid-focused multivitamin that includes it, without needing very large amounts.