Omega-3 fats are an essential component of our cell membranes, belonging to so-called polyunsaturated fats. They can’t be produced by our bodies, so it is necessary to take them through food. They are important for mainly heart health and keeping heart beat in check, preventing stroke, heart disease and abnormalities in heart rhythm (arrhythmias). Apart from that, they are beneficial for blood vessels, brain, nervous system, immune system and glands. It is shown that enough intake of omega-3 fats helps regulate eczema, arthritis, dementia and even protect from cancer. They are commonly found in fish, nuts, seeds and plant oils. Some of the best sources are walnuts, flax seeds, flaxseed oil, sardines, herring, salmon and mackerel, as well as some leafy vegetables like brussels sprout or kale.