How many calories in
lemon?
Lemon is 29 calories per 100g, mostly natural sugars. One of the lower-calorie fruits — a forgiving choice in tight macro budgets.
Common serving sizes.
Calories scale with portion. Here's how a typical lemon serving translates in your tracker:
What 29 calories means.
Very low calorie — at 29 kcal per 100g, lemon adds volume to a meal without meaningfully denting a calorie deficit.
Lemon vs. similar foods.
How lemon stacks up on calories and protein against foods people commonly compare it to:
Skip the lookup. Snap the plate.
Point your iPhone camera at lemon and Spotwell's AI estimates the portion and macros in a few seconds. Check it, adjust anything that looks off, and log it.
Download on theApp StoreQuick answers.
How many calories in lemon?
Lemon has approximately 29 calories per 100g. A typical serving — 3 oz (85g) — comes in at 25 calories.
How much protein is in lemon?
1.1g of protein per 100g. That puts lemon at roughly 3.8g of protein per 100 calories — a useful lens when comparing to other fruits sources.
How do I log lemon accurately?
The simplest method: weigh it on a kitchen scale, then enter grams in your tracker. With Spotwell, you can skip the scale — point the camera at the plate and the AI estimates the portion in a few seconds. Adjust the value if it looks off.
Is lemon good for weight loss?
It depends on your overall calorie target. Lemon is naturally low-calorie at 29 kcal per 100g, so it's easy to fit into a deficit.