Anchovy is a blue fish with high protein content. Anchovy is rich in vitamin B3 or niacin (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 disease). Oily fish is a rich source of omega3 (helps reduce cholesterol, triglycerides, increases blood fluidity, preventing cardiovascular diseases). It also contains vitamins A (helps in the development of the nervous and immune system by intervening in bone growth) and D (regulates calcium levels in the blood).