Fish broth is near-zero calorie — 16 kcal and 200 mg sodium per 100 g. People underestimate liquid portions 50–200% of the time (Almiron-Roig et al., Appetite 2013). The sodium, not the calories, is the lever to track — weigh the bowl, not the ladle.
How should I track Fish broth?
For the most accurate tracking of Fish broth, weigh it raw and boneless. Fish loses 15–25% of its weight during cooking as water evaporates (USDA cooking yield data). If you are using canned fish, the drained weight is what matters — the difference between oil-packed and water-packed can be 40–80 calories per can. A quick drain-and-weigh habit saves you from hidden calories. Also keep in mind that smoked or cured fish has different values than fresh due to moisture loss and added salt.