May help prevent symptoms of mental decline and asthma

Your brain function declines as you become older, and your chance of Alzheimer's disease rises. People who consume more fish have a slower loss of brain function as they age. However, research on fish oil supplements in older persons hasn't shown that they help delay the decrease of brain function. Nonetheless, a small number of studies have found that fish oil may aid memory in healthy older persons.

Asthma, which causes lung swelling and shortness of breath, is becoming increasingly frequent among newborns. Several studies have found that fish oil can help lessen asthma symptoms, especially in children. However, not all investigations had the same findings. A prior study of over 100,000 participants discovered that a mother's fish or omega-3 diet reduced the incidence of asthma in offspring by 24-29%. Furthermore, fish oil supplements used by pregnant women may lessen the risk of allergies in their children.