The anchovy is a blue fish with a high protein content. The anchovy is rich in vitamin B3 or niacin (which is involved in the metabolism of carbohydrates, proteins, and fats beneficial for the circulatory system), B6 or pyridoxine (recommended in cases of diabetes, depression, and asthma, also helping to prevent heart diseases), the blue fish is a rich source of omega-3 (helps to decrease cholesterol, triglycerides, increases blood flow preventing cardiovascular diseases). It also contains vitamins A (helps in the development of the nervous and immune system, intervening in bone growth) and D (regulates calcium levels in the blood).