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Niacin: what it changed, and what it did not

One intervention, every measured benefit and result that did not improve. See who it moved for, where it stayed neutral or went the other way, and the next hypothesis Phoenix can validate.

Phoenix APOE4 Research · Reviewed by Kevin Tran, APOE4/4 carrier and founder · Data through 2026-08-23 · How to read this research

How to read this

Observational research: real APOE4 carriers tracked over time, each compared with their own earlier self. Members chose their interventions, with no randomisation or placebo group. Everything else they changed is shown beside each result.

Read the full methods and limits

Key findings

Phoenix has measured Niacin against 3 exact outcomes for APOE4 carriers. Member #4025C9's LDL cholesterol moved from 135 to 121 mg/dL in 255 days. Member #4025C9's Total cholesterol moved from 239 to 205 mg/dL in 255 days. Member #4025C9's Triglycerides moved from 119 to 76 mg/dL in 255 days.

Niacin evidence by outcome
OutcomeDirectionWhat we observed
LDL cholesterolRepeated positiveMember #4025C9's LDL cholesterol moved from 135 to 121 mg/dL in 255 days.
Total cholesterolRepeated positiveMember #4025C9's Total cholesterol moved from 239 to 205 mg/dL in 255 days.
TriglyceridesPositive individual resultMember #4025C9's Triglycerides moved from 119 to 76 mg/dL in 255 days.

Questions about Niacin

What is the effect of Niacin for APOE4 carriers?

Phoenix has measured Niacin against 3 exact outcomes for APOE4 carriers. Member #4025C9's LDL cholesterol moved from 135 to 121 mg/dL in 255 days. Member #4025C9's Total cholesterol moved from 239 to 205 mg/dL in 255 days. Member #4025C9's Triglycerides moved from 119 to 76 mg/dL in 255 days.

Does Niacin change LDL cholesterol for APOE4 carriers?

Member #4025C9's LDL cholesterol moved from 135 to 121 mg/dL in 255 days. Support: 2 logged members, 2 members with repeats, 2 observations, 4 measurements.

Does Niacin change Total cholesterol for APOE4 carriers?

Member #4025C9's Total cholesterol moved from 239 to 205 mg/dL in 255 days. Support: 2 logged members, 2 members with repeats, 2 observations, 4 measurements.

Does Niacin change Triglycerides for APOE4 carriers?

Member #4025C9's Triglycerides moved from 119 to 76 mg/dL in 255 days. Support: 1 logged members, 1 members with repeats, 1 observations, 2 measurements.

What changed for real APOE4 carriers?

Search by health goal or intervention to see what changed for real members, including results that moved the wrong way.

Niacin · 3 outcomes shown.

Intervention categorySupplements
InterventionNiacin

Niacin

SupplementsOutcomes: 3

LDL cholesterol: Decrease 12–14 mg/dL

Cases: 2Case range

Total cholesterol: Decrease 15–34 mg/dL

Cases: 2Case range

Triglycerides: Decrease 43 mg/dL

Cases: 1

The Beat the Odds Study

The 43-page study: what members tried, how their bloodwork and wearable results changed, and what else changed alongside them.

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