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Supplement$$$Cheap: Roughly under $50, or under $15/month.

Vitamin B12

The supplement plant-based stacks here treat as non-negotiable

B12 is only reliably available from animal foods or fortification, which is why a vegan or near-vegan diet is the standard case for supplementing it. Deficiency causes fatigue and irreversible nerve damage if left long enough. Older adults absorb it less well regardless of diet. Cheap, safe, and one of the few supplements here with an unambiguous case.

Who backs it

Sorted by strength of stance

  • Rich RollDoes it

    Ultra-endurance athlete · The Rich Roll Podcast

    Supplements B12 as non-negotiable for eating fully plant-based, and says so plainly whenever the diet comes up.

    Source: The Rich Roll Podcast
  • Rhonda PatrickRecommends

    Biomedical scientist · FoundMyFitness

    B12 is non-negotiable for anyone eating plant-based, she says, and absorption declines with age regardless of diet.

    Source: FoundMyFitness

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    Daily multivitamin and mineral taken as a nutritional backstop

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    Backed by 5 of 44 stacks: 4 do it, 1 recommend it, 0 have discussed it
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    Backed by 4 of 44 stacks: 3 do it, 0 recommend it, 1 have discussed it
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    AG1 (Athletic Greens)

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    Backed by 3 of 44 stacks: 3 do it, 0 recommend it, 0 have discussed it
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    Backed by 1 of 44 stacks: 1 do it, 0 recommend it, 0 have discussed it
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    Backed by 37 of 44 stacks: 32 do it, 3 recommend it, 2 have discussed it

Supplement entry · notes paraphrased from cited sources, quoted excerpts copied from the transcript they link to. Not medical advice. Not affiliated with, endorsed by, or reviewed by anyone listed. How this works.