If you're looking to lose weight, look toward Vietnamese food. Because meat is used sparingly in most dishes -- more as a condiment than a main ingredient -- most dishes are very low in both fat and calories. You're more likely to find meat paired with dipping sauces than elsewhere.
While Vietnamese food is delicious and uses large quantities of vegetables, it may not be the best cuisine for vegetarians. This is because fish sauce is used in everything from pho to entrees to dipping sauces, along with thin slivers of meat. Only the sweets are devoid of fish sauce.