Step-by-step: the simplest workflow
- Write the meal as you’d text a friend.
- Add portions (cups, slices, “half a burrito”, “one palm”).
- Call out multipliers: oils, sauces, cheese, nuts, alcohol, sugary drinks.
- Request assumptions so you can correct anything wrong.
- Log it in a way you can track over time (this is where TrueCal helps).
A copy-paste prompt
Estimate calories and macros (protein, carbs, fat). Meal: [what I ate] Portions: [rough amounts] Details: [brand/recipe/cooking method, sauces, oils, drinks] Output: 1) Total calories + macros 2) Assumptions you made 3) What to clarify to improve accuracy
If you want the full “ChatGPT calorie tracker” overview, start at ChatGPT calorie tracker.
Meal examples that actually work
Breakfast
Meal: oatmeal with banana and peanut butter Portions: 1 cup cooked oats, 1 medium banana, 1 tbsp peanut butter Details: cooked with water, cinnamon, no added sugar
Restaurant
Meal: cheeseburger and fries Portions: 1 burger, medium fries Details: regular bun, no mayo, ketchup on fries, diet soda
Homemade dinner
Meal: chicken stir fry with rice Portions: ~2 cups total, rice about 1 cup Details: cooked with 1 tbsp oil, teriyaki sauce, vegetables mixed
Portion language that improves estimates
- “1 cup”, “2 cups”, “1/2 cup” (best for rice, pasta, cereal)
- “2 slices”, “1 tortilla”, “1 bagel” (best for bread items)
- “palm-sized”, “thumb-sized”, “fist-sized” (good enough when you’re out)
- “half the plate”, “a handful”, “a small bowl” (still better than nothing)
Common mistakes (and how to fix them)
- Forgetting oils and sauces: add “1 tbsp olive oil” or “2 tbsp ranch”.
- Missing drinks: lattes, beer, cocktails add up fast.
- Generic packaged foods: provide the brand or a photo of the label.
- “Accuracy anxiety”: focus on consistency; fix the big items.
Want this without the manual copy-paste?
TrueCal is built specifically for conversational logging. You tell it what you ate, it calculates, and it keeps a clean log over time. Learn more on how it works or try it now.