Crawfish, also called crayfish, look like tiny lobsters and are typically between 3 inches and 6 inches long.
They are a low-fat source of protein and essential vitamins and minerals.
A 3-ounce serving of cooked crawfish contains 70 calories and 14 grams of protein along with trace amounts of fat and carbohydrates.
When you eat a serving of crawfish, you get 30 percent of the daily value for vitamin B12, 10 percent of the DV for niacin and folate and 4 percent of the DV for riboflavin, thiamine and vitamin B-6. These B vitamins are essential for nervous system function, turning the food you eat into energy and keeping your liver, eyes, skin and hair healthy.