There is around 142 calories for every cup of lobster, which is not a very significant amount at all. The number of calories in lobster does however vary depending on the part of the lobster you are eating as well as how it is prepared and other foods it is mixed with. Lobster claw meat for example has around 89 calories for every 100 grams of meat with almost 19 grams of almost fat-free protein per serving.
The fact is that lobster is quite the nutritious shellfish so you will definitely want to consider eating more of it on a regular basis. A cup of lobster bisque on the other hand contains about 248 calories because it is so creamy and fattening. Although you may enjoy eating lobster bisque, it is a good idea to limit the amount you have. Lobster claws on the other hand make for a good low-fat meal which is particularly delicious and enjoyed by millions of people all over the world.