Do I have to weigh food to track protein?
Only for the first couple of weeks, and only for your main protein source. After that, calibrated estimates are close enough.
How to Track Protein (Without Weighing Everything)
Tracking protein does not require logging every gram forever. Two weeks of accurate tracking teaches you portion sizes; after that, estimates get you within 10%.
Start with your daily target, divide it by the number of meals you eat, and treat that as a per-meal minimum. For a 140g target across four meals, that is 35g each.
Then check yourself: log honestly for two weeks, find where the gap is, and fix that meal specifically. For most people the gap is lunch.
Anchor foods worth memorising
Protein and calories per 100g, from the Protein Hunter database.
| Food | Protein | Calories |
|---|---|---|
| 🥤 Whey protein isolate | 90g | 400 |
| 🐔 Chicken breast (cooked) | 31g | 179 |
| 🐟 Tuna (canned in water) | 29g | 131 |
| 🥚 Whole egg | 13g | 155 |
| 🌾 Rolled oats (dry) | 13g | 389 |
| 🧀 Cottage cheese (low-fat) | 12g | 72 |
| 🍢 Firm tofu | 12g | 76 |
| 🥣 Greek yogurt (plain, 0%) | 10g | 59 |
| 🫘 Lentils (cooked) | 9g | 116 |
| 🥛 Whole milk | 3.4g | 61 |
Per 100g.
The system
- Memorise five foods you eat constantly and their per-100g protein. That covers most days without a lookup.
- A palm-sized portion of cooked meat or fish is roughly 25–30g of protein for most adults.
- Weigh only the anchor protein; estimate the rest. The anchor is where the grams are.
- Log the day in the Protein Calendar and check the weekly average rather than obsessing over single days.
- Take one photo of a typical plate a week and run Meal Scan on it to keep your estimates calibrated.
Add up your whole meal
Type what you ate in plain words and Protein Hunter returns protein and calories for the full plate.
Try the Protein CalculatorCommon questions
What is the easiest way to track protein?
Set a per-meal minimum, describe meals in plain words in the calculator, and let the daily total build itself in the calendar.
How accurate is protein tracking?
Within roughly 10% for a careful estimator, which is close enough for any real-world goal.
Keep reading
Protein CalculatorAdd up any meal in plain words.Protein database230+ foods with protein and calories.How much protein per daySet the target these foods feed into.What is Protein Hunter?
Protein Hunter is a protein and nutrition app with a database of 232 foods — from a leaf of kale to a wagyu steak — plus AI tools that answer protein questions, count a whole meal, build recipes to a macro target, and track what you actually eat.
- Search any food
- Count a full meal
- Recipes to your macros
- Scan a plate or label
Why it's different: the numbers are calculated from a fixed ingredient database rather than guessed, and when a target is not physically achievable the app says so instead of inventing a figure.
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