Research Brief: Scientists warn that current vitamin B12 guidelines may be putting your brain at risk

Getting enough vitamin B12 to meet current health guidelines may not actually be enough to protect the aging brain. Researchers at UC San Francisco fo...

Source credit: ScienceDaily Health & Medicine. Original source date: May 22, 2026.

What happened

Getting enough vitamin B12 to meet current health guidelines may not actually be enough to protect the aging brain. Researchers at UC San Francisco found that older adults with “normal” but lower levels of active B12 showed si…

Why it matters for lifters

For lifters, nutrition research matters because food choices, body composition, recovery, appetite, and performance are connected.

What to watch next

Do not make a diet change from one headline. Watch for study design, population, dose, duration, and whether the result applies to active people.

Health note: This article is informational and is not medical advice. Consult a qualified professional for medical, injury, nutrition, supplement, or individualized training decisions.