4.Nutrition

The main ingredients of traditional Japanese sushi,raw fish and rice,are naturally law in fat,high in protein,carbohydrates,vitamins and minerals.The same may not be said categorically of Western style sushi,which increasingly features non-traditional ingredients such as mayonnaise,avocado and cream cheese.
Traditional sushi contains:

• Fats: Most seafood are naturally low in fat;and what fat is found in them is generally rich unsaturated fat Omega-3.Since sushi is often served raw,no fat is introduced in its preparation.Some non-traditional ingredients such as cream cheese and mayonnaise sometimes found in Western-style sushi dishes can easily add significant amounts unhealthy fat though to a traditionally lean fish.
• Proteins: Fish,tofu,seafood,egg and many other sushi fillings contain high levels of protein.It should be noted though that imitation meat such as crab stick can be lower in protein and other nutrition than their natural,unprocessed counterparts.
• Vitamins and Minerals: These are found in much of the seafood and vegetables used for sushi.The nutritional content obviously is dependent on ingredients used.Shrimps for example are high in calcium and iodine,while salmon are rich in Vitamin D.The gari and nori used to make sushi are both rich in nutrients.Other vegetables wrapped within the sushi also offer various degrees of nutritional value.
• Carbohydrates: These are found in the rice and vegetables.Certain non-traditional ingredients though,such as mayonnaise,can raise the carbohydrate level quite high though,as with the fat level.