Exact descriptions stay visible
“Pizza” or “omelet” is never treated as a complete recipe. The guide retains crust, filling, cooking method, and other qualifiers from each selected FNDDS record.
Curated meal comparisons
What changes the nutrition in a familiar meal?
Sixteen deep guides compare exact USDA FoodData Central records without hiding serving weights or stretching one record into a universal answer. See which preparations are direct matches, what drives the differences, and where the source data stops.
Portion and density stay separate
Source-serving calories answer a different question from calories per 100 grams. Showing both prevents a smaller listed amount from looking like a recipe effect.
Sparse evidence stays sparse
When the corpus has only one direct Pad Thai or sushi-roll match, nearby records are labeled as context. We do not turn different dishes into invented variants.
The guide library
Start with the meal on your plate
Each guide includes lower, middle, and higher observed source examples, a complete comparison table, portion and preparation analysis, match steps, limitations, and citations.
019 linked records
Burrito bowl
A burrito bowl is a format, not a fixed recipe. The selected USDA records make the effect of meat, beans, rice, and reported portion weight visible without pretending that one number describes every bowl.
- Selected source servings
- 290–539 kcal
- Direct matches
- 9
Observed selected records—not a personalized estimate or universal range.
Read the full burrito bowl guide029 linked records
Pizza
Pizza comparisons become misleading when slice count hides slice weight. This guide uses exact USDA records to show how source serving mass, crust style, toppings, and preparation context combine to move the reported total.
- Selected source servings
- 458–923 kcal
- Direct matches
- 9
Observed selected records—not a personalized estimate or universal range.
Read the full pizza guide039 linked records
Omelet
The word “omelet” leaves several high-impact details unresolved: whole egg or egg white, how many eggs, cooking fat, cheese, meat, vegetables, and final portion weight. FNDDS records expose those distinctions instead of collapsing them into one generic entry.
- Selected source servings
- 34–420 kcal
- Direct matches
- 9
Observed selected records—not a personalized estimate or universal range.
Read the full omelet guide0410 linked records
Oatmeal
Cooked oatmeal can begin with the same grain and end with a different profile because the cooking liquid, packet formulation, added fat, sweeteners, and toppings change. These exact records isolate several of those choices.
- Selected source servings
- 134–310 kcal
- Direct matches
- 10
Observed selected records—not a personalized estimate or universal range.
Read the full oatmeal guide0511 linked records
Smoothie
A smoothie hides its ingredient ratios once everything is blended. The USDA records below keep broad formulation differences visible—whole fruit versus juice drink, dairy versus non-dairy, and added protein—while holding the cited amount at 324 grams.
- Selected source servings
- 165–279 kcal
- Direct matches
- 11
Observed selected records—not a personalized estimate or universal range.
Read the full smoothie guide066 linked records
Ramen
Ramen can mean a diluted noodle soup, a composed bowl with protein and egg, or a restaurant preparation with unknown broth concentration. These source records show why the matched description matters even when the cited weight is the same.
- Selected source servings
- 162–336 kcal
- Direct matches
- 6
Observed selected records—not a personalized estimate or universal range.
Read the full ramen guide0711 linked records
Tacos
The most important number in a taco meal may be the number of tacos. After count, tortilla type, filling, beans, cheese, and per-taco weight explain why two plates with the same label can differ.
- Selected source servings
- 167–385 kcal
- Direct matches
- 11
Observed selected records—not a personalized estimate or universal range.
Read the full tacos guide086 linked records
Chicken curry
FNDDS provides two direct chicken-curry descriptions: curry alone and chicken curry with rice. Related curry-and-rice records are shown only as context, making the database boundary explicit instead of manufacturing extra chicken-curry variants.
- Selected source servings
- 206–257 kcal
- Direct matches
- 2
- Context records
- 4, visibly labeled
Observed selected records—not a personalized estimate or universal range.
Read the full chicken curry guide093 linked records
Biryani
Biryani is a layered rice dish whose meat, vegetables, oil, and serving weight vary across preparations. The current FNDDS corpus contains three broad records, enough to compare reported cases but not enough to define every regional style.
- Selected source servings
- 234–355 kcal
- Direct matches
- 3
Observed selected records—not a personalized estimate or universal range.
Read the full biryani guide1010 linked records
Lasagna
Lasagna is one of the cleaner source comparisons in this collection: all selected records use a 250-gram reference amount. That holds portion weight steady enough to make filling and preparation differences easier to inspect.
- Selected source servings
- 243–518 kcal
- Direct matches
- 10
Observed selected records—not a personalized estimate or universal range.
Read the full lasagna guide1110 linked records
Cheeseburger
“One cheeseburger” is not a stable serving unit. In the selected FNDDS records, item weight changes with slider size, patty size, patty count, and bun, making the complete description more informative than the name alone.
- Selected source servings
- 179–987 kcal
- Direct matches
- 10
Observed selected records—not a personalized estimate or universal range.
Read the full cheeseburger guide125 linked records
Pad Thai
The current corpus contains one direct Pad Thai match. A high-quality guide should say that plainly. Nearby rice-noodle and lo-mein records can clarify what the database covers, but they cannot manufacture a Pad Thai range.
- Selected source servings
- 187–316 kcal
- Direct matches
- 1
- Context records
- 4, visibly labeled
Observed selected records—not a personalized estimate or universal range.
Read the full pad thai guide135 linked records
Fried rice
FNDDS separates meatless fried rice from beef, chicken, pork, and shrimp versions. The records create a useful comparison, but the meatless source amount is lighter than the protein versions, so serving totals and density must be read together.
- Selected source servings
- 289–354 kcal
- Direct matches
- 5
Observed selected records—not a personalized estimate or universal range.
Read the full fried rice guide145 linked records
Chicken Caesar salad
The two direct Caesar records both specify no dressing, which is the most important limitation to notice. Nearby chicken garden-salad records add context for chicken preparation and cheese, but they remain adjacent—not Caesar—matches.
- Selected source servings
- 196–455 kcal
- Direct matches
- 2
- Context records
- 3, visibly labeled
Observed selected records—not a personalized estimate or universal range.
Read the full chicken caesar salad guide153 linked records
Sushi rolls
The current corpus has one record explicitly labeled as a sushi roll. Two topped-sushi records provide a narrow view of nearby FNDDS coverage, but the page does not turn nigiri-style descriptions into roll estimates or invent missing roll varieties.
- Selected source servings
- 180–238 kcal
- Direct matches
- 1
- Context records
- 2, visibly labeled
Observed selected records—not a personalized estimate or universal range.
Read the full sushi rolls guide167 linked records
Pasta with meat sauce
Pasta with meat sauce becomes a better comparison when noodle type, preparation source, and serving weight are visible. FNDDS supplies parallel home, ready-to-heat, and restaurant records that expose those distinctions.
- Selected source servings
- 303–445 kcal
- Direct matches
- 7
Observed selected records—not a personalized estimate or universal range.
Read the full pasta with meat sauce guideHow to read the numbers
A reference record is a comparison point, not a measurement
FNDDS records describe foods reported in a national dietary survey and attach nutrient values and household measures to those descriptions. A guide can compare those records faithfully; it cannot determine the weight, ingredient ratio, brand, or preparation of an unseen plate.
Source-serving values preserve the amount attached to the exact record. They are useful when your portion resembles that amount. Per-100-gram values hold food weight constant, making concentration differences easier to inspect. Neither view removes the need to choose a close description.
The observed low, middle, and high cards on each guide are deliberately literal: they are three records from the selected set, ordered by calories in their own source servings. They are not confidence bounds, suggested portions, or a claim about all versions of the dish.