Seafood Calories, Calories in Seafood
Seafood calories may be low, but they are a rich source of protein, omega-3 fatty acids (good fat), and many vitamins and minerals.
The Seafood we list below can be broken into two types of seafood:
- molluscs, such as squid, octopus, shellfish etc.
- crustaceans, such as crab and lobster.
For information on fish, look at Calories in Fish.
In the United Kingdom, the Food Standards Agency recommends that we eat two portions of Seafood every week.
Countries that have a diet rich in Seafood generally have a low incidence of heart disease. Seafood is also thought to help brain development, lessen our levels of stress and reduce pain in our joints.
Calories in Seafood vary, so we’ve summarised them below. Check out each one to understand their nutritional information in more detail.
Seafood is ideal to help you on your weight loss journey. Seafood can enhance weight loss because of the omega-3 fatty acids. Omega-3 fatty acids decrease growth of fat cells, which may reduce body fat.

Calories in Seafood
(per 3.5 oz or 100 grams)
 | Calories in Clams | 74 kcal raw 148 kcal cooked, moist heat 202 kcal breaded, fried |  | Calories in Crab | 84 kcal raw 97 kcal cooked, moist heat |  | Calories in Crayfish, wild/farmed | 72/77 kcal raw 82/87 kcal cooked, moist heat |  | Calories in Lobster, northern/spiny lobster | 90/112 kcal raw 98/143 kcal cooked, moist heat |  | Calories in Mussels, | 86 kcal raw 172 kcal cooked, moist heat
|  | Calories in Octopus | 82 kcal raw 164 kcal cooked, moist heat |  | Calories in Oysters, wild/farmed | 68/59 kcal raw 137 kcal cooked, moist heat 72/79 kcal dry heat |  | Calories in Scallops | 88 kcal raw 112 kcal steamed 215 kcal breaded and fried |  | Calories in Shrimp | 106 kcal raw 99 kcal cooked, moist heat 242 kcal breaded and fried |  | Calories in Squid | 92 kcal raw 175 kcal cooked, fried |
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