Browse by exact outcome

Vitamin B12 level: every measured intervention

Ranked only against the same measurement, in the same unit. See the positive, neutral, opposite-direction and still-collecting evidence before deciding what is worth your own test.

Research issue
Issue 01
Data through
2026-08-09
Evidence map version
v1.1.0
Explore the evidence Get the Evidence Map

How to read this

Phoenix research is longitudinal and observational: we follow real APOE4 carriers over time and compare each member with their own earlier self, with no placebo group, no randomisation, and members choosing their own interventions.

That means these are strong signals pointing at what to test next, not proof of cause. Most nutrition, supplement and lifestyle research you read online has exactly the same design. The difference is that we say so, and we show you the confounders.

Read the full methods and limits

What the Phoenix community is measuring

Browse exact outcomes and interventions. Each result keeps its source, measurement rule and audit record beside the claim.

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Nutrient status

Track each named nutrient biomarker in its own unit.

Still unanswered

Vitamin B12 level

Laboratory vitamin B12 result · Aim: higher

Vitamin B12

?Collecting evidence

The support cohort has 76 B12-family users and 15 with a repeat vitamin B12 level; clean eligibility is not published.

0 selected member cases · not a response rate

Logged members
76
Members with repeats
15
Measurements
30
Sources and context

Members matched to the B12 family support question with a repeat vitamin B12 result.

  • report-lines-129-156, reviewed by independent verifier

Collecting evidence

No answer yet on Vitamin B12 level

Vitamin B12 is being tracked against Vitamin B12 level, but Phoenix has not yet published a ranked result for this exact question.

Every carrier who logs a dated start and a repeat test moves this page closer to an answer, including you.

Topic-specific updates about Vitamin B12 · No spam
Keep the map

Take every result into your next experiment.

Get the Issue 01 Evidence Map by email. It groups the same evidence by outcome and by intervention, including what worked, what did not, and what Phoenix wants to test next.

Instant PDF · Issue 02 lands in your inbox the day it publishes · No spam

Turn evidence into your next test

Magnesium and homocysteine is 7 members from an answer.

Forty carriers with a dated start and a repeat blood test close it. Creatine, vitamin D3 and B12 sit further back. Your next blood test is somebody else's answer, and theirs is yours.

Take the 7-minute assessment