A study looked into the relationship between omega-3 consumption and male fertility. An article about the study can be found here:https://nationalpost.com/pmn/health-pmn/fish-oil-supplements-tied-to-improved-male-fertility
Of course, Terra Nova Seal Oil is a very good source of omega-3. In the article, it states the following:
Men who consume fish oil supplements, which are high in omega-3 fatty acids, might get a boost in fertility, a new study suggests.
After examining data from nearly 1,700 young men, researchers determined that fish oil supplement consumption was associated with a higher sperm count, larger testes and improved levels of hormones that contribute to male fertility, according to the report published in JAMA Network Open.