Vitamin B4 is not a standard current vitamin name

The current list does not run through every B number

MedlinePlus lists B1, B2, B3, B5, B6, B7, B9 and B12 among the essential vitamins. It does not list B4 as another required vitamin. Number gaps do not prove a missing dietary requirement, and a product using B4 needs a defined chemical ingredient before its claims can be evaluated. [1]

If the ingredient is choline, evaluate choline

Some discussions use nonstandard vitamin-like language. If the actual label identifies choline, NIH ODS describes it as an essential nutrient involved in cell membranes and acetylcholine synthesis. Those normal functions are not proof that an unspecified B4 product improves memory or energy. Choline has its own intake references; it should not be assigned a fabricated B4 allowance. [2]

A hypothetical ingredient check

Suppose a front label says B4 support while the facts panel names choline bitartrate. Record the declared choline amount and named source when comparing it with evidence. If no actual ingredient or amount is given, the name alone is insufficient to assess what the product supplies. This is an identity check, not an endorsement. [2]

Hypothetical example — interpret a specific hypothetical label or comparison
Hypothetical label element	What to establish
B4 support	Nonstandard name needs clarification
Choline amount	Actual nutrient contribution
Choline bitartrate	Named ingredient form

Vitamin B4 is not a standard current vitamin name — original article outline diagram — Original editorial diagram of this article’s sections; no product photograph or clinical finding is depicted.

Sources for this article

Vitamins: MedlinePlus Medical Encyclopedia
Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.
Choline - Health Professional Fact Sheet
Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.