How Onions fits in your day
Onions is a commonly tracked food in calorie apps. Per 4 oz (110g), it provides 41 calories and 1.1g of protein, with 1.8g of fiber.
For an average adult eating 2,000 to 2,500 kcal a day, one serving of onions is around 2% of daily calories. Adjust the portion in healmeal to match what you ate and the macros update with it.
Onions ranks #40 of the 59 foods in its category for protein density, the share of calories that come from protein (11% here).
Logging onions in healmeal takes two taps. Snap a photo or search by name, then save. Apple Health, your widget and your trend chart update with it.
FAQ
How many calories are in onions?
Onions has 41 calories per 4 oz (110g).
How much protein is in onions?
Onions contains 1.1g of protein per 4 oz (110g).
Is onions good for weight loss?
Onions can fit in a fat-loss plan. What matters is total daily calories and protein intake. Log onions in healmeal in two taps and see where it lands in your day.
Is onions high in protein?
Not really. Only about 11% of the calories in onions come from protein, so pair it with a higher-protein food if you are tracking macros.
How much fiber is in onions?
Onions has 1.8g of fiber per 4 oz (110g).
What does healmeal say about onions?
healmeal logs onions in two taps. Snap a photo, search by name, or scan a barcode if it is packaged. The portion is editable.
Similar foods
Calories per serving, so you can line them up at a glance.
Last updated 20 May 2026
Values are approximate and the portion is editable in the app. See our methodology for how each number is sourced.