Bryan Johnson· Author
A study of 1,925 people over 15 years found that ingesting more than 0.1 mg of aluminum through drinking water was associated with cognitive decline, Alzheimer's, and dementia.
The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
A study of 1,925 people over 15 years found that ingesting more than 0.1 mg of aluminum through drinking water was associated with cognitive decline, Alzheimer's, and dementia.
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Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
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A long-term study found that consuming just 0.1 mg of aluminum per day was linked to higher rates of Alzheimer's, cognitive decline, and dementia.
You don't want excess aluminum in your body.