Omega-3 fatty acids are a type of good fat needed for normal brain function. Our bodies can't make omega-3s on their own, so we must obtain them through our diet.
Studies have linked depression with low dietary intake of omega-3 fatty acids. In countries with higher fish consumption, such as Japan and Taiwan, the depression rate is 10 times lower than in North American. Postpartum depression is also less common.
Studies suggest that omega-3's together with antidepressants may be more effective than antidepressants alone.
Cold water fish such as salmon, sardines, and anchovies are the richest food source of omega-3 fatty acids. But instead of eating more fish which contain mercury, PCBs, and other chemicals, fish oil capsules are considered a cleaner source of omega-3 fatty acids. Many companies filter their fish oil so that these chemicals are removed.
Fish oil capsules are sold in health food stores, drug stores, and online. Most brands should be stored in the fridge to prevent the oil from going rancid. When comparing brands, the key active components for depression are EPA and DHA.
Fish oil capsules may interact with blood-thinning drugs such as warfarin and aspirin. Side effects may include indigestion and bleeding. Fish oil should not be taken 2 weeks before or after surgery.
Fish oil can also cause a fishy aftertaste. To prevent this, try taking the fish oil just before meals.
