Per 100g, marshmallow delivers 318 calories and 81g of carbs. Per-piece numbers depend heavily on size — log accurately by reading the package.
Calories scale with portion. Here's how a typical marshmallow serving translates in your tracker:
Point your iPhone camera at marshmallow and SpotWell's on-device AI estimates the portion and macros in under a second — no manual entry, no barcode hunting.
Download on theApp StoreMarshmallow has approximately 318 calories per 100g. A typical serving — 3 oz (85g) — comes in at 270 calories.
1.8g of protein per 100g. That puts marshmallow at roughly 0.6g of protein per 100 calories — a useful lens when comparing to other sweets sources.
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 under a second. Adjust the value if it looks off.
It depends on your overall calorie target. Marshmallow sits in a moderate calorie range. It can fit any goal — weight loss, maintenance, or muscle gain — when portioned to your daily target.