Atlantic mackerel is calorie-dense for fish — 305 calories per 100g, with 25g of fat that's largely omega-3. It's one of the highest-omega fish you can buy, well above salmon. The strong flavor means portion sizes are usually smaller, which keeps calories reasonable.
Calories scale with portion. Here's how a typical mackerel serving translates in your tracker:
Calorie-dense and fatty — 25 g of fat per 100g (Atlantic) means small portions add up fast, so weigh it rather than eyeballing.
Point your iPhone camera at mackerel and Spotwell's on-device AI estimates the portion and macros in under a second — no manual entry, no barcode hunting.
Download on theApp StoreMackerel has approximately 305 calories per 100g (Atlantic). A typical serving — 1 fillet (88g) — comes in at 268 calories.
19g of protein per 100g (Atlantic). That puts mackerel at roughly 6.2g of protein per 100 calories — a useful lens when comparing to other protein 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. Mackerel sits in a moderate calorie range. It can fit any goal — weight loss, maintenance, or muscle gain — when portioned to your daily target.