Algal oil has all of the health benefits of fish oil. This is because it contains omega-3 and omega-9 fatty acids, which can reduce swelling and improve brain function, according to WebMD. Algal oil can be taken by most adults as long as it is not consumed more than 3 grams daily.
The potential for depression reduction is also shown by fatty acids. The Harvard Medical School notes that studies indicate they may have a positive impact on those with conditions, such as postpartum depression and bipolar disorder, but more research needs to be done in this area. This oil might also reduce anxiety, as omega-3 supplementation was shown to do so in a 2011 study published in Brain, Behavior, and Immunity. Furthermore, the omega-3 fatty acids found in algal oil might help fight against cognitive decline, according to Healthline. Talk to your doctor before taking any supplements.