How many calories in
kelp?
Kelp is 43 calories per 100g — very low for vegetables. Low-cal enough to fill out plates without much trade-off.
Common serving sizes.
Calories scale with portion. Here's how a typical kelp serving translates in your tracker:
What 43 calories means.
Very low calorie — at 43 kcal per 100g, kelp adds volume to a meal without meaningfully denting a calorie deficit.
Kelp vs. similar foods.
How kelp stacks up on calories and protein against foods people commonly compare it to:
Skip the lookup. Snap the plate.
Point your iPhone camera at kelp 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 kelp?
Kelp has approximately 43 calories per 100g. A typical serving — 3 oz (85g) — comes in at 37 calories.
How much protein is in kelp?
1.7g of protein per 100g. That puts kelp at roughly 4.0g of protein per 100 calories — a useful lens when comparing to other vegetables sources.
How do I log kelp 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 kelp good for weight loss?
It depends on your overall calorie target. Kelp is naturally low-calorie at 43 kcal per 100g, so it's easy to fit into a deficit.