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.
6 Reasons To Eat More Sardines. 1. Theyâre good for you. Sardines pack an awesome nutritional punch. A single serving has around 23 grams of protein and is loaded with omega-3 fatty acids, calcium, iron and potassium, and only 200 calories.. They arenât bad for you. Sardines are low on the oceanic food chain, and therefore contain low amounts of mercury, PCBs and the other toxins that accumulate in longer-living marine predators such as salmon and tuna. This makes them a particularly good choice for children and pregnant women.