Here you’ll find 3 vitamins that start with T, organized from “Thiamine” to “Tocotrienol”. They support energy metabolism, nerve function, and antioxidant protection in the body.

Vitamins that start with T are a small group of essential nutrients whose names begin with the letter T. For example, thiamine was identified early in the 20th century when scientists linked it to beriberi.

Below you’ll find the table with Vitamin, Benefit summary, Primary food sources, and RDI (age/gender caveat and source).

Vitamin: This column lists each vitamin name so you can quickly identify the nutrient and its common forms.

Benefit summary: Short, 1–2 sentence descriptions show the main health role so you can judge importance at a glance.

Primary food sources: Lists three to five common foods providing the vitamin so you can plan diet choices easily.

RDI and notes: Gives a reference intake with units and brief age or gender caveats, plus the authoritative source.

Vitamins that start with T

NameChemical/ClassPrimary food sourcesRDI (with source)
ThiamineVitamin B1 (B‑vitamin)Whole grains; pork; legumes; sunflower seeds; fortified cereals1.2 mg (adult men 19–50) — NIH
TocopherolVitamin E — tocopherol familySunflower oil; almonds; spinach; wheat germ; avocado15 mg α‑tocopherol (adults 19+) — NIH
TocotrienolVitamin E — tocotrienol familyPalm oil; rice bran; barley; oats; annattoNo separate RDI; intake covered by 15 mg α‑tocopherol (adults 19+) — NIH

Descriptions

Thiamine
Essential for energy metabolism and nerve function; deficiency causes beriberi and can impair cognition and coordination.
Tocopherol
A major antioxidant that protects cell membranes and supports immune health; dietary needs are expressed as α‑tocopherol equivalents.
Tocotrienol
Part of the vitamin E family with antioxidant activity and emerging research interest; major authorities do not set a separate RDI.
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