Compare adult protein references and explicit g/kg assumptions with a range graphic and equal-meal arithmetic.
01 / ADULT REFERENCE ASSUMPTIONS
Adults only. General healthy-adult RDA and athlete reference intervals have different scopes. The exercise midpoint is an illustration, not a default suitable for every adult. Pregnancy, lactation, kidney/liver disease and other medical conditions require individualized professional guidance.
All calculations and food quantities stay in browser memory. No account, saved dietary history, API lookup or upload is used.
02 / YOUR SELECTED ASSUMPTION
| Comparison | General healthy-adult RDA | Exercise / athlete reference interval |
|---|---|---|
| g/kg/day | 0.8 | 1.2–2.0 |
| g/lb/day · converted | 0.363 | 0.544–0.907 |
| Grams/day at your entered weight | 64 | 96–160 |
| Scope | Conventional healthy-adult RDA comparison, not an individualized assessment | Athletes/exercise-related reference, not appropriate for every adult |
Selected: 128 g/day at 1.6 g/kg/day. General healthy-adult RDA arithmetic: 64 g/day at 0.8 g/kg/day. Selected minus this reference is 64 g/day; the difference does not assess your dietary adequacy.
Switching references changes only this comparison, not the selected daily amount. NIH ODS distinguishes the reference populations; there is no universal optimal g/kg figure for every goal.
The existing chart shows all references and the selected amount. Its meal inspector always illustrates equal division; the optional custom-percentage table below is a separate arithmetic alternative.
Meal 1: 32 g when divided equally across 4 meals. Equal allocation is arithmetic, not a demonstrated optimal meal prescription.
| Assumption | g/kg/day | Grams/day | Equal grams/meal |
|---|---|---|---|
| Conventional adult RDA | .8 | 64 | 16 |
| Exercise interval lower | 1.2 | 96 | 24 |
| Exercise interval upper | 2.0 | 160 | 40 |
| Selected | 1.6 | 128 | 32 |
| Meal | Share (%) | Protein (g) · rounded |
|---|---|---|
| 1 | 25 | 32 |
| 2 | 25 | 32 |
| 3 | 25 | 32 |
| 4 | 25 | 32 |
Adult general information only, not clinical nutrition advice. Pregnancy, lactation, kidney/liver disease and other medical conditions require individualized guidance; this tool is not for medication dosing or treatment.
03 / OPTIONAL FOOD ILLUSTRATION
Food-planning illustration, not a complete diet plan. Values are approximate USDA SR Legacy (2018) household-measure data, a FoodData Central data type. Brand, preparation and portion size vary. These examples do not assess protein quality, allergies, other nutrients or individual suitability. No food serving is recommended automatically.
Combined approximate protein: 0 g · selected reference calculation: 128 g/day (comparison only).
| Food | One serving | Servings entered | Approximate protein (g) |
|---|
Only entered foods are counted. A total matching a reference does not establish a complete or adequate diet. Quantity bounds (0–20 servings per item) are input safeguards, not a meal recommendation.
04 / REFERENCES
Enter your values locally; no inputs are uploaded.
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Review the explanation, copy supported outputs or reset the workspace.
Enter adult body weight and reference activity label. Choose an optional manual g/kg assumption and meal count. Compare the adult RDA, exercise interval and selected daily amount. Read the worked explanation and scope alongside every result.
Compare adult protein references and explicit g/kg assumptions with a range graphic and equal-meal arithmetic. Interactive controls inspect the calculated model without silently changing submitted assumptions.
Protein Calculator inputs and calculations remain in browser memory. No external processing API receives entered dates, measurements, coefficients or financial values. Ordinary website page requests may still be logged. Clipboard access occurs only when you choose Copy Result.
Daily grams equal body weight in kilograms times the explicitly selected g/kg/day assumption. Pounds use exactly 0.45359237 kilograms per pound.
NIH ODS distinguishes the conventional healthy-adult RDA of 0.8 g/kg/day from the exercise-related athlete interval of 1.2–2.0 g/kg/day. These references serve different purposes.
It is the arithmetic midpoint of 1.2 and 2.0, clearly labeled as an illustration. It is not a separately validated personalized requirement or a medical prescription.
No. Exercise categories use the same cited interval, and goal labels do not silently alter targets. A manual assumption is shown explicitly instead of inventing fine-grained requirements.
No. They divide the selected daily grams by the entered number of meals. Equal allocation does not demonstrate optimal timing or require supplements or particular foods.
This calculator is adult general information, not clinical advice. Pregnancy, lactation, kidney or liver disease and other medical conditions require individualized guidance; it is not a treatment or dosing tool.