Omega-3 fatty acids are important nutrients that support several important processes within your body. Most notably, long-chain omega-3 fatty acids help to keep your heart healthy. Oily fish is the richest natural source of omega-3, but omega-3 supplements offer a convenient way to top up your intake.

Keep scrolling to learn more about omega-3 fatty acids, or click one of the following headings to skip ahead:

• What are omega-3 fatty acids?
• Why are omega-3 fatty acids important?
• Which foods contain long-chain omega-3 fatty acids?
• Should I take omega-3 supplements?

Fish oil and krill oil are two of the most popular omega-3 supplements on the market – but which one should you take?

If you've been comparing fish oil vs krill oil, you've probably noticed that they appear to offer similar benefits. But there are a few key differences to be aware of.