Topic

Long-term health and immunity

Deaths from any cause, cancer counts, infections, breathing and eyesight over time.

This page is not a ranking. Ingredients appear in order of how much we have read here.

The 9 things measured here · ingredients read against each

Read here so far: 20 questions across 17 ingredients

Omega-3 fatty acids (EPA/DHA)

Omega-3 fatty acids (EPA/DHA) and Age-related macular degeneration progressionOne source, found no clear difference, and one source carries a noticeModerate certainty, level 3 of 4
Omega-3 fatty acids (EPA/DHA) and All-cause mortalityOne source, found no clear difference, and one source carries a noticeModerate certainty, level 3 of 4
Omega-3 fatty acids (EPA/DHA) and Dry eye symptom severityOne source, found no clear difference, and one source carries a noticeLow certainty, level 2 of 4

Zinc

Zinc and Age-related macular degeneration progressionOne source, measured lower, and one source carries a noticeLow certainty, level 2 of 4
Zinc and Common cold durationOne source, measured lowerLow certainty, level 2 of 4

Boron

Boron and Lymphocyte CountOne source, measured higherLow certainty, level 2 of 4

Boswellia serrata

Boswellia serrata and Forced Expiratory Volume 1s (FEV1)One source, measured higherVery low certainty, level 1 of 4

Coenzyme Q10

Coenzyme Q10 and All-cause mortalityOne source, measured lowerLow certainty, level 2 of 4

Copper

Copper and All-cause mortalityOne source, measured higherVery low certainty, level 1 of 4

Folate

Folate and All-cause mortalityOne source, found no clear differenceLow certainty, level 2 of 4

Ginkgo biloba

Ginkgo biloba and Quality of Life ScoreOne source, measured higherLow certainty, level 2 of 4

Iron

Iron and Quality of Life ScoreOne source, measured higher, and one source carries a noticeModerate certainty, level 3 of 4

Magnesium

Magnesium and All-cause mortalityTwo sources, all measured lowerVery low certainty, level 1 of 4

N-acetylcysteine

N-acetylcysteine and Respiratory exacerbation rateOne source, measured lowerModerate certainty, level 3 of 4

Selenium

Selenium and All-cause mortalityOne source, found no clear differenceModerate certainty, level 3 of 4

Sodium

Sodium and Gastric cancer riskOne source, measured higherVery low certainty, level 1 of 4

Vitamin A

Vitamin A and All-cause mortalityFour sources, saying different things, and one source carries a noticeHigh certainty, level 4 of 4

Vitamin B6

Vitamin B6 and All-cause mortalityOne source, found no clear difference, and one source carries a noticeModerate certainty, level 3 of 4

Vitamin E

Vitamin E and All-cause mortalityOne source, found no clear differenceLow certainty, level 2 of 4

Vitamin K2 (menaquinone-7)

Vitamin K2 (menaquinone-7) and All-cause mortalityOne source, found no clear differenceVery low certainty, level 1 of 4

Where the sources say different things

Every side in full, because one line would have to pick one of them.

Each bar is one source’s range, drawn against the line of no difference: left of the line is lower, right is higher. Widths are not comparable between rows.

Vitamin A and all-cause mortality
Four sources here, and they say different things: one measured lower all-cause mortality, two found no clear difference and one reported mixed results.
High certainty, level 4 of 4The sources say different thingsOne source carries a notice
One source’s range. The sources here say different things. Systematic review, 2022 · 19 studies pooled · 1,202,382 participants

How much of this is one source

Read from 24 sources. 18 of the 20 questions here rest on a single source with nothing yet to check them against, and on 1 question the sources say different things.

What is still to read is kept per ingredient, not per topic, so every ingredient named above carries its own list.

Still to read means nobody here has got to it, not that it was tried and did nothing or that no research exists. A pairing on no list is not a gap: we never set out to read it.

The other 14 topics

This is a library, not advice. No recommendation, no dose, no diagnosis, no ranking. We never ask about your symptoms, and nothing here is tailored to you.