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Mushrooms and Fruits as Vitamin B12 Sources Fact-Checked

“mushrooms have some B vitamins but not too much, at least (0.03MCH and only in white button mushrooms). almonds, kiwi, guava, pomegranate, blackberries, oranges are great sources of vitamins B12”
Mostly false
Confidence: High Checked on June 13, 2026

Summary

Mushrooms provide a range of B vitamins (including B2, B3, B5, B6, and folate) in appreciable amounts across many varieties, not just white button mushrooms. Almonds, kiwi, guava, pomegranate, blackberries, and oranges contain little to no vitamin B12 and are not considered good sources of this vitamin.

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Sources 57 searched

pmc.ncbi.nlm.nih.gov
sciencedirect.com
webmd.com
  • Health Benefits of Mushrooms

    The B vitamins and antioxidants in mushrooms can boost neurotransmitter function — that is, they can improve your body's ability to carry chemical messages from your nerve cells to other nerve, gland, or muscle cells.

extension.uconn.edu
nutritionsource.hsph.harvard.edu
  • Mushrooms - The Nutrition Source - Harvard University

    Although considered a vegetable, mushrooms are neither a plant nor animal food. They are a type of fungus that contains a substance called ergosterol, similar in structure to cholesterol in animals. Ergosterol can be transformed into vitamin D with exposure to ultraviolet light.

nutritionfacts.org
fruitsandveggies.org
health.clevelandclinic.org

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