20 Jan 2020 --- Consuming fish oil supplements, which are high in omega 3 fatty acids, has been associated with better testicular function, as measured by semen quality and reproductive hormone levels among healthy young men. This is according to a recent study published in JAMA Network Open, which highlights the fact that young men have poor semen quality, with the causes often unknown. While a well-designed randomized clinical trial among unselected men is still warranted, industry remains ever-conscious of the potential of fish oil supplements in the male fertility sector.