Zenius Fish oil capsules may be used to add a source of omega-3 fatty acids to the diet or to provide potential health benefits such as improved heart health, reduced inflammation, and improved brain and joint health. Fish oil capsules may also be used to help improve vision, reduce the risk of age-related macular degeneration, and improve symptoms of depression, anxiety, and ADHD. It's important to note that the potential benefits of fish oil capsules are not fully understood and more research is needed to determine the optimal dosage and duration of use. It's also important to speak with a healthcare professional before adding fish oil or any other supplement to your diet. Fish oil may interact with certain medications and may not be suitable for everyone.