Because the body converts all dietary sources of vitamin A into retinol, 1 mcg of physiologically available retinol is equivalent to the following amounts from dietary sources: 1 mcg of retinol, 12 mcg of beta-carotene, and 24 mcg of alpha-carotene or beta-cryptoxanthin.
The body needs more omega-3 than omega-6 to reduce the risk of heart disease and inflammation. Since olive oil is higher in omega-3 than other oils, sardines in olive oil contain more omega-3 than sardines in water; however, the sardines in water are still the better option with lower amounts of cholesterol and fat.
A can of sardines, which is equal to about 3.75 ounces, contains 10.53 grams of fat, but only 1.4 grams are saturated. The rest of the fat in a can of sardines is healthy unsaturated fat, which can help lower your cholesterol and reduce your risk of heart disease.ardines contain magnesium, potassium and zinc as well. One drawback to sardines is their high sodium content. One can of sardines contains 465 milligrams of sodium. The daily limit of sodium is 2,300 milligrams for healthy adults and 1,500 milligrams for individuals with heart disease.