Caviar contains a large number of minerals, and vitamins A, C and D. Caviar does not contain trans fats or any carbohydrates, which sets it apart from many foods in the modern diet. Thirty percent of salmon caviar is protein; this protein contains Omega-3 fatty acids. Many think that since roe is so nourishing it must contain many calories. In reality, with such a high concentration of protein (about 30%) and 13-15% fat, the calorie intake from salmon caviar is not too great, only 240-260 calories for every 100 grams. When serving as a separate appetizer, 1 ounce (28.35 grams) of caviar is recommended per person.