Nutriwise
13,694 foods with USDA nutrient data, and a portion converter — so you can see what a cup or a tablespoon actually works out to. Reference values are per 100 g, so foods compare like for like.
Foods
13,694
USDA FoodData Central, three reference datasets
Nutrient values
1,018,555
Individual measured amounts
Nutrients tracked
474
314 of them appear in at least one food
Foods with a portion weight
13,044
These are the ones the converter can scale
Foods by category
The largest USDA food categories in this database. Categories come from USDA's own classification of the reference datasets.
- Beef Products975
- Vegetables and Vegetable Products913
- Baked Products525
- Lamb, Veal, and Game Products466
- Fruits and Fruit Juices430
- Poultry Products395
- Beverages370
- Sweets360
- Legumes and Legume Products351
- Baby Foods345
- Pork Products343
- Dairy and Egg Products341
- No category reported5,432
8,262 of 13,694 foods carry a category. The other 5,432 come from the FNDDS survey dataset, which uses a different classification system (WWEIA) that this database has not loaded yet — so their category is genuinely unknown here, not zero and not “other”.
Anything derived from categories — the counts above, the category filter on the browse page — covers only the foods that carry one. We show the shortfall rather than quietly dropping it.
USDA release currently loaded: 2026-04-30.
Where the data comes from
Three federal reference datasets, each published by the USDA Agricultural Research Service. They overlap in purpose but not in method, which is why a food's dataset is shown on its page.
- SR Legacy7,793
- Survey (FNDDS)5,432
- Foundation Foods469
How to read these numbers
About zeros
A value of 0 may mean a nutrient is genuinely absent, or that it was not measured. USDA does not distinguish, so this site never uses 0 to claim a food is free of anything.
Per 100 g, always
All values are reference figures per 100 g. A cup of chopped carrot and a cup of sliced carrot weigh different amounts — the converter uses the published weight.
The portion converter
USDA's own lookup does not convert portion sizes — its FAQ says so. Pick a portion here and the nutrients scale to it.
Common questions
- Where do these nutrition figures come from?
- Why do some nutrients show “Not reported”?
- Can I rely on this for an allergy?
- Why does a branded product differ from the generic version?
They come from USDA FoodData Central, a public-domain dataset published by the U.S. Department of Agriculture. Each food page credits the specific dataset and release it was taken from.
Because the source dataset does not contain a value for that nutrient in that food. A blank means “not measured”, which is different from zero. We never display a missing value as 0, because that would assert something the source does not say.
No. Allergen information in reference datasets is incomplete and is not a substitute for reading the actual product label. Always check the label on the product you are going to eat.
Because composition genuinely differs. Reference values describe a typical sample; a specific brand’s formulation, and its preparation, will vary. Where a branded record exists we show it separately from the generic reference.