Three things to remember
- Choline is essential, but it is not one of the 13 vitamins.
- An antioxidant claim does not establish a supplement’s health benefit.
- Keep essential nutrient requirements separate from broader bioactive claims.
Choline: an essential nutrient
The liver makes some choline, but not enough to meet all needs. Choline supports cell membranes, fat transport and the production of acetylcholine, a nerve-signalling molecule. Eggs, soybeans, fish, meat, dairy and some other plant foods contribute it.
Requirements vary by life stage. Check the official reference, particularly around pregnancy, instead of assuming a multivitamin includes an adequate amount.
Sources: NIH ODS · Choline ↗ · NIH ODS · Nutrition and supplements in pregnancy ↗
Plant compounds and antioxidants
Plant foods contain many compounds, including carotenoid pigments and polyphenols. These are not all essential vitamins, and there is no single daily “antioxidant requirement” that a high-dose blend can satisfy.
Some antioxidants are essential vitamins, such as C and E; others are not. Findings about eating fruit and vegetables cannot simply be transferred to concentrated antioxidant pills. High doses can cause harm in some circumstances.
Sources: NCCIH · Antioxidant supplements ↗
Gut-health terms have their own guide
Prebiotics, probiotics, synbiotics, postbiotics and fermented foods now have a dedicated guide that distinguishes their definitions and evidence.
Bring the focus back to meals
Build variety with vegetables, fruit, pulses, wholegrains, nuts and seeds. Consider what a product adds to that pattern, its evidence and its limitations. Avoid treating “natural”, “antioxidant” or “gut health” as proof that everyone needs it.
Sources: WHO · Healthy diet (2026) ↗ · NCCIH · Antioxidant supplements ↗
Common questions
Is choline a B vitamin?
It is often discussed alongside B vitamins, but it is a separate essential nutrient rather than one of the eight B vitamins.
Are all fermented foods proven probiotics?
No. Fermentation alone does not establish that a food contains live organisms with a demonstrated benefit at the amount consumed.
Sources & scope
This is an editorial summary of the sources below. Published reference values apply to their stated populations. No individual diagnosis, deficiency test or medical assessment is performed here.