Energy
middle half129 kcalthis record per 100 g
- Corpus median
- 125 kcal
- Middle 50%
- 101–139 kcal
Based on 28 records reporting energy.
Pasta, rice & grainsmoderate variability
Lo mein, with beef calories: 258 per 1 cup (200 g)
This exact USDA record reports 258 calories for 1 cup (200 g). That answer belongs to this description and weight; it is not a universal value for every meal that shares the name.
Quick facts
1 cup · 200 g
- Calories
- 258 kcal
- Protein
- 19.5 g
- Carbohydrate
- 32.4 g
- Total fat
- 5.5 g
- Fiber
- 2 g
- Sodium
- 716 mg
Portion calculator
Estimate your portion
Choose a source measure or enter the weight you ate.
Estimated for 1 cup · 200 g
258calories
Lo mein, with beef
- Protein
- 19.5 g
- Carbs
- 32.4 g
- Fat
- 5.5 g
— means the source has no value available.
These values scale the selected reference food by weight. Ingredients, preparation, and portion size can change your meal’s estimate.
Nutrition facts, household measures, preparation notes and USDA sources
The editorial read
The useful answer has a weight, a composition, and an identity
Portion: the cited record reports about 258 calories for 1 cup at 200 grams. On a fixed-weight basis, the same record contains 129 calories per 100 grams. The first number answers a portion question; the second answers a concentration question.
Composition: that source amount also reports 19.5 g protein, 2 g fiber, and 716 mg sodium. Read those values together: a calorie total by itself cannot describe the nutrient profile.
Identity: the largest listed formulation input is restaurant, chinese, vegetable lo mein, without meat, representing 80.2% of the record’s listed input weight. The record contains 2 source-input rows in all. These are provenance for a standardized calculation, not a recipe for your plate.
The source calls its underlying survey portion “Quantity not specified,” but it separately lists 1 cup at the identical weight. We use the familiar household label here without changing the source calculation.
Record-specific decision brief
What the numbers say—and what choice still belongs to you
This analysis belongs to USDA FDC 2708802: “Lo mein, with beef.” It separates gram-weight arithmetic, corpus context, label signals, and record selection so one number does not have to answer four different questions.
01 · Portion arithmetic
Three weights, one fixed composition
For FDC 2708802, each row multiplies the published per-100-gram values by its stated weight. “75% of the reference weight” through “125% of the reference weight” are weight scenarios: named measures come from USDA, while percentage labels are transparent arithmetic.
| Scenario | Weight | Energy | Protein | Fiber | Sodium |
|---|---|---|---|---|---|
| 75% of the reference weightArithmetic scenario from the reference weight | 150 g | 194 kcal | 14.6 g | 1.5 g | 537 mg |
| 1 cupUSDA-listed household measure | 200 g | 258 kcal | 19.5 g | 2 g | 716 mg |
| 125% of the reference weightArithmetic scenario from the reference weight | 250 g | 323 kcal | 24.3 g | 2.5 g | 895 mg |
02 · Fixed-weight context
Where 100 grams sits inside Fried rice and lo/chow mein
The comparison set contains 28 exact records in the Fried rice and lo/chow mein USDA category. Here, “middle half” describes FDC 2708802’s energy position in that corpus—not nutritional quality, desirability, or a health rating.
Protein
middle half9.7 gthis record per 100 g
- Corpus median
- 8.3 g
- Middle 50%
- 2.3–9.8 g
Based on 28 records reporting protein.
Dietary fiber
middle half1 gthis record per 100 g
- Corpus median
- 1.1 g
- Middle 50%
- 0.9–1.5 g
Based on 28 records reporting dietary fiber.
Sodium
middle half358 mgthis record per 100 g
- Corpus median
- 357 mg
- Middle 50%
- 327–395 mg
Based on 28 records reporting sodium.
03 · FDA label lens
The strongest strength-side and tradeoff-side signals
At FDC 2708802’s 200 g reference weight, the largest strength-side percentage among the nutrients evaluated here is Iron; the larger tradeoff-side percentage is Sodium. Percentages use FDA label Daily Values, whose general “high” guide begins at 20% Daily Value. This is not an overall score or a personalized target.
Strength-side signals
Iron3 mg
≈ 16% DV. This does not cross the FDA’s 20% ‘high’ guide.
Dietary fiber2 g
≈ 7% DV. This does not cross the FDA’s 20% ‘high’ guide.
Tradeoff-side signals
Sodium716 mg
≈ 31% DV. This crosses the FDA’s 20% ‘high’ guide.
Saturated fat1.4 g
≈ 7% DV. This does not cross the FDA’s 20% ‘high’ guide.
04 · Highest-impact checks
The three levers most worth resolving first
For “Lo mein, with beef,” the first-pass checks follow the evidence actually published: its named weights, the FDC 2706742 alternative, and its source-formulation identity.
- 01
Portion sensitivity around 200 g
A 25% weight move in either direction spans 150–250 g. When composition is held constant, those endpoints calculate to 194 kcal and 323 kcal.
- 02
Record choice: compare with FDC 2706742
At an equal 100 g, this record has 12.4 g more carbohydrate than “Beef chow mein or chop suey, no noodles.” That is a record-level contrast; it does not identify which ingredient caused the difference.
- 03
Formulation anchor: Restaurant, Chinese, vegetable lo mein, without meat
The source formulation has 2 input rows; Restaurant, Chinese, vegetable lo mein, without meat supplies 80.2% of listed input weight. Those are standardized formulation inputs, not final plated percentages.
05 · Exact-record choice
Select by literal evidence, not the shortest name
Keep this record when “with beef” fits. Inspect FDC 2706742 when “no noodles” is the more literal description of the food and preparation.
Keep this profile when these fields fit
Lo mein, with beef
- Exact source wording
- “Lo mein, with beef”
- Source identity
- USDA FDC 2708802 · FNDDS 58136150
- Named qualifiers
- with beef
- Source inputs unique in this pair
- Restaurant, Chinese, vegetable lo mein, without meat
Inspect this alternative when its fields fit better
Beef chow mein or chop suey, no noodles
- Exact source wording
- “Beef chow mein or chop suey, no noodles”
- Source identity
- USDA FDC 2706742 · FNDDS 27415150
- Named qualifiers
- no noodles
- Source inputs unique in this pair
- Restaurant, Chinese, vegetable chow mein, without meat or noodles
Choose the closest description
Which USDA record fits your meal?
Treat the long description as data. The phrases doing the most work here are “with beef”. Match those details first; then compare the database weight with the amount you mean.
On smaller screens, focus a nutrition table and scroll horizontally to read every column.
| Exact record | Source serving | Calories / 100 g | Protein / 100 g | Fat / 100 g | Fiber / 100 g | Sodium / 100 g |
|---|---|---|---|---|---|---|
| This recordLo mein, with beef | 200 g258 kcal | 129 kcal | 9.7 g | 2.8 g | 1 g | 358 mg |
| Beef chow mein or chop suey with noodles | 220 g284 kcal | 129 kcal | 10.8 g | 4.9 g | 1.5 g | 328 mg |
| Lo mein, with chicken | 200 g260 kcal | 130 kcal | 9.2 g | 3.2 g | 1 g | 413 mg |
| Lo mein, with shrimp | 200 g242 kcal | 121 kcal | 8.6 g | 2.2 g | 1 g | 363 mg |
| Lo mein, with pork | 200 g276 kcal | 138 kcal | 9.5 g | 3.8 g | 1 g | 357 mg |
| Beef chow mein or chop suey, no noodles | 165 g135 kcal | 82 kcal | 10.8 g | 2.6 g | 0.8 g | 253 mg |
| Rice, fried, with beef | 198 g352 kcal | 178 kcal | 7.9 g | 4.1 g | 0.9 g | 313 mg |
How to compare FDC 2708802: its source amount is 200 g; every 100-gram column removes portion size from the record-to-record comparison. Neither denominator determines your plate’s weight or recipe.
Household measures
Compare listed portions
For FDC 2708802, the 1 displayed measure scale the same source composition by gram weight; rounding changes presentation, not the underlying ratio.
1 cup
258 kcal
200 g
At a glance
Nutrient signals in the source amount
For FDC 2708802, Sodium is the largest displayed non-protein Daily Value signal. Read the set as label context—not a personalized score.
Sodium
716 mg≈ 31% Daily ValueIron
2.9 mg≈ 16% Daily ValueThe percentages above apply to FDC 2708802’s 200 g reference amount. FDA Daily Values are general label references, not individualized energy or medical targets. Read the FDA explanation ↗
Why FDC 2708802 has no protein percentage here: Feast reports 19.5 g, but does not present grams divided by 50 as FDA protein %DV; applicable label rules account for protein quality and regulatory context.
Source-serving signals
What stands out in this record
These 1 calculated observation describe FDC 2708802 at 200 g—not a measured or recommended plate.
- The representative USDA portion contains 716 mg sodium, about 31% of the Daily Value used on U.S. labels.
Nutrition facts
Compare the source serving with 100 grams
Values are rounded for readability. The source serving is 200 g.
| Nutrient | Amount | Approx. % Daily Value |
|---|---|---|
| Calories | 258 kcal 129 kcal | Not established Not established |
| Protein | 19.5 g 9.7 g | Not shown Not shown |
| Carbohydrate | 32.4 g 16.2 g | 12% 6% |
| Total fat | 5.5 g 2.8 g | 7% 4% |
| Dietary fiber | 2 g 1 g | 7% 4% |
| Sugars | 4.2 g 2.1 g | Not established Not established |
| Sodium | 716 mg 358 mg | 31% 16% |
| Saturated fat | 1.4 g 0.7 g | 7% 4% |
| Monounsaturated Fat | 1.7 g 0.9 g | Not established Not established |
| Polyunsaturated Fat | 2.2 g 1.1 g | Not established Not established |
| Cholesterol | 30 mg 15 mg | 10% 5% |
| Potassium | 320 mg 160 mg | 7% 3% |
| Calcium | 40 mg 20 mg | 3% 2% |
| Iron | 2.9 mg 1.4 mg | 16% 8% |
| Magnesium | 28 mg 14 mg | 7% 3% |
| Vitamin C | 2.8 mg 1.4 mg | 3% 2% |
| Vitamin D | 0.2 µg 0.1 µg | 1% 1% |
| Vitamin A | 16 µg 8 µg | 2% 1% |
| Caffeine | 0 mg 0 mg | Not established Not established |
| Alcohol | 0 g 0 g | Not established Not established |
| Water | 140 g 70 g | Not established Not established |
For FDC 2708802, approximate percentages divide the displayed 200 g amount by FDA label Daily Values; they are not personalized targets. “Not established” means FDA sets no Daily Value for that row. Protein %DV remains unshown because adult-label use depends on regulatory context.
Inside the source record
Source formulation behind this USDA record
USDA links FDC 2708802 to 2 source inputs totaling 1,695.8 g in its standardized formulation. Publishing that exact provenance makes “Lo mein, with beef” inspectable beside similarly named records.
How to read this
2 listed components
The largest listed inputs by source weight are Restaurant, Chinese, vegetable lo mein, without meat, Beef, round, top round roast, boneless, separable lean and fat, trimmed to 0" fat, all grades, cooked, roasted. The order and weights below come from the standardized USDA formulation, so they offer context for this exact database entry.
1,695.8 g total listed input weight across the formulation.
| # | USDA input | Listed amount | Input weight | Share of listed input weight |
|---|---|---|---|---|
| 1 | Restaurant, Chinese, vegetable lo mein, without meatUSDA ingredient 36625 · encyclopedia page available | 3 LB | 1,360.8 g | 80.2% |
| 2 | Beef, round, top round roast, boneless, separable lean and fat, trimmed to 0" fat, all grades, cooked, roastedUSDA ingredient 23348 · encyclopedia page available | 335 GM | 335 g | 19.8% |
Exact-record context
What makes this USDA record distinct?
For FDC 2708802, the close-record rule searches the USDA “Fried rice and lo/chow mein” category for shared description terms or source inputs. Any surviving pair is compared per 100 grams, so unlike source-serving sizes cannot manufacture the nutrient difference.
This record
Lo mein, with beef
- USDA category
- Fried rice and lo/chow mein
- FDC ID
- 2708802
- FNDDS code
- 58136150
Closest inspectable record
Beef chow mein or chop suey, no noodles
- USDA category
- Fried rice and lo/chow mein
- FDC ID
- 2706742
- FNDDS code
- 27415150
| Nutrient | This record | Comparison record | Difference |
|---|---|---|---|
| Calories | 129 kcal | 82 kcal | +47 kcal |
| Protein | 9.7 g | 10.8 g | −1.1 g |
| Carbohydrate | 16.2 g | 3.9 g | +12.4 g |
| Total fat | 2.8 g | 2.6 g | +0.2 g |
| Dietary fiber | 1 g | 0.8 g | +0.2 g |
| Sodium | 358 mg | 253 mg | +105 mg |
Plain-English read
At the fixed 100-gram basis, this record lists 47 more calories, 12.4 g more carbohydrate, and 105 mg more sodium than “Beef chow mein or chop suey, no noodles.”
Only this record lists Restaurant, Chinese, vegetable lo mein, without meat. Only the comparison record lists Restaurant, Chinese, vegetable chow mein, without meat or noodles. Those formulation rows identify different source records; they do not prove which input caused a nutrient difference.
3 of the six displayed differences clear the documented materiality screen. It is a reading aid, not a health rating.
Formulation evidence
The listed formulations differ
The formulation rows differ, but the source data do not isolate which component caused any nutrient difference. Input weights describe the standardized formulation—not final plated proportions.
Shared listed inputs: Beef, round, top round roast, boneless, separable lean and fat, trimmed to 0" fat, all grades, cooked, roasted.
Listed only in this record: Restaurant, Chinese, vegetable lo mein, without meat.
Listed only in the comparison: Restaurant, Chinese, vegetable chow mein, without meat or noodles.
Portion evidence
The listed portion sets differ
This record’s reference amount is 200 g; a familiar listed measure is 1 cup (200 g).
The comparison record’s reference amount is 165 g; a familiar listed measure is 1 cup (220 g).
Use the 100-gram row to compare FDC 2708802 with FDC 2706742 at equal mass; use their 200 g and 165 g source amounts only for portion matching.
Evidence boundary: FDC 2708802 versus FDC 2706742 is a comparison of standardized source records—not a measurement of your meal, an overall food-quality rank, or proof that one input caused a difference.
Review the full fried rice and lo/chow mein source category → Read the calculation and selection methodology →
From record to familiar meal
Guides that use this exact USDA record
These 1 guide place “Lo mein, with beef” beside explicitly linked source records; use them to compare preparations without turning FDC 2708802 into a universal recipe.
Uncertainty, made actionable
What can change this estimate?
This is a standardized USDA survey-food profile, not a measurement of every preparation. Actual nutrition can change with amount served, cooked-to-dry ratio, sauce or mix-ins, added fat.
For “Lo mein, with beef,” resolve amount served first, then move through the remaining 3 published levers. Unknowns should remain visible rather than expanding every assumption at once.
- 01
amount served
When composition is held constant, nutrient totals scale directly with grams. A 20% weight correction produces the same 20% correction to the scaled totals.
- 02
cooked-to-dry ratio
Match the food state before matching the number. Cooking, draining, or added liquid can change grams and concentration even when the food name barely changes.
- 03
sauce or mix-ins
Check whether the exact source description already includes it. If not, keep the addition separate rather than silently folding it into the base record.
- 04
added fat
Match the named cooking-fat state when possible. Fat used, retained, or left behind is preparation information that a dish name alone cannot recover.
How we estimated this
The arithmetic is simple; the provenance is the point
FDC 2708802 comes from FoodData Central Survey Foods (FNDDS). Its 129 kcal per 100 g becomes 258 kcal at 200 g through nutrient per portion = nutrient per 100 g × portion grams ÷ 100; this page adds no second nutrition estimate.
About the serving label: USDA describes the underlying survey portion as “Quantity not specified.” The separately listed 1 cup has the same gram weight, so the familiar label can be shown without changing the calculation.
Data cycle: 2021–2023, published October 31, 2024
FoodData Central ID: 2708802
FNDDS food code: 58136150
The scaling for FDC 2708802 can be exact while the match to “Lo mein, with beef” is wrong. That is why this profile keeps its 200 g weight, 2-row source formulation, and selection uncertainty beside the arithmetic.
Source release October 31, 2024. Review USDA’s data-type documentation ↗ · Read Feast’s full nutrition methodology.