Onion, raw: calories and macros
A serving of onion (1 medium, 110 g) has 44 kcal, 1.2 g of protein, 10.2 g of carbohydrates and 0.1 g of fat. Per 100 g it is 40 kcal.
Nutrition per 100 g and per portion
| 100 g | 1 medium (110 g) | 1 tbsp chopped (10 g) | |
|---|---|---|---|
| Calories | 40 kcal | 44 kcal | 4 kcal |
| Protein | 1.1 g | 1.2 g | 0.1 g |
| Carbohydrates | 9.3 g | 10.2 g | 0.9 g |
| Fiber | 1.7 g | 1.9 g | 0.2 g |
| Sugars | 4.2 g | 4.6 g | 0.4 g |
| Fat | 0.1 g | 0.1 g | 0 g |
| Saturated fat | 0 g | 0 g | 0 g |
| Sodium | 4 mg | 4 mg | 0 mg |
Values rounded from USDA FoodData Central reference data for onion, raw. Brands, recipes and cooking change the numbers: a barcode scan in Gutlog uses the label instead. General nutrition information, not medical or dietary advice.
Log onion from a photo
Send a photo of your plate to ChatGPT or Claude and say “log this”. Gutlog matches it, estimates the portion and stores calories, macros and ingredients, each with a confidence you can fix in one sentence. Logging from your assistant is free and unlimited.
Paste this into your assistant
Set up Gutlog for me: read https://getgutlog.com/setup.md and follow it.