Omega-3 fatty acids and their anti-inflammatory properties make them particularly valuable in the treatment of chronic inflammatory diseases. Recent studies have also shown that EPA and DHA promote a healthy gut microbiome. Because the human body can only synthesize these fatty acids in limited amounts, it is important to get them through diet. Cold-water fish such as salmon, mackerel and herring are rich in these omega-3 fatty acids, but many people do not eat enough of them to meet their needs. Therefore, taking fish oil capsules can be an easy and effective way to get enough EPA and DHA.