Oysters top the FAO uFISH index. Micronutrient density (Johnsson et al., Front Nutr 2025). Per 100 g: 68 kcal, 7.1 g protein, 39.3 mg zinc. A raw oyster is typically 15–20 g of meat — count shucked pieces, not shells.
How should I track Oysters, raw?
Oysters, raw is high in zinc. For the most accurate tracking of Oysters, raw, 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.