About Thiamin (B1)
Thiamin is essential for converting carbohydrates into energy via the citric acid cycle, and for the synthesis of fatty acids and certain neurotransmitters. It cannot be stored in the body for long, so regular dietary intake is important. Wholegrains, legumes, nutritional yeast, and sunflower seeds are good plant sources.
Beriberi — wet beriberi affects the cardiovascular system (oedema, heart failure); dry beriberi causes peripheral neuropathy (weakness, tingling, paralysis). Wernicke–Korsakoff syndrome, a serious neurological condition, occurs in severe deficiency particularly associated with heavy alcohol use. Deficiency is rare in the UK on a varied diet.
No toxic effects from food sources are known. The body readily excretes excess thiamin in urine.
Daily Reference Intake
per European Regulation 1169/2011
= 373% of daily NRV
used in our database
Foods Containing Thiamin (B1)
916 foods with recorded data, ranked highest first. Showing 901–916 of 916. Values per 100g fresh weight.
| # | Food | Per 100g | % NRV | Level |
|---|---|---|---|---|
| ★ | Sugar, white | 0 mg | 0% | |
| ★ | Coffee, instant, made up with water | 0 mg | 0% | |
| ★ | Tea, infusion, average, with whole milk | 0 mg | 0% | |
| 4 | Tea, green, infusion | 0 mg | 0% | |
| 5 | Cola | 0 mg | 0% | |
| 6 | Spirits, 40% volume | 0 mg | 0% | |
| 7 | Vinegar | 0 mg | 0% | |
| 8 | Bicarbonate of soda | 0 mg | 0% | |
| 9 | Salt | 0 mg | 0% | |
| 10 | Water, distilled | 0 mg | 0% | |
| 11 | Cola, diet | 0 mg | 0% | |
| 12 | Tonic water | 0 mg | 0% | |
| 13 | Apple juice, with added vitamin C, from concentrate, shelf stable | 0 mg | 0% | |
| 14 | Grape juice, white, with added vitamin C, from concentrate, shelf stable | 0 mg | 0% | |
| 15 | Bagels, plain | 0 mg | 0% | |
| 16 | Bread, seeded | 0 mg | 0% |
* Values are per 100g fresh weight. % NRV = percentage of EU Nutrient Reference Value. Bar shows relative level compared to the highest value across all foods in the database.