Fertility Linked to DHA

"Normal sperm cells contain an arc-like structure called the acrosome that is critical in fertilization because it houses, organizes, and concentrates a variety of enzymes that sperm use to penetrate an egg," said Manabu Nakamura, PhD, of the University of Illinois. His study showed that docosahexaenoic acid (DHA) is essential for fusing the building blocks of the acrosome together. Dr. Nakamura and his team determined that mice lacking sufficient DHA were infertile. When DHA was introduced into the mice's diet, fertility was restored.

Fatty, coldwater fish such as salmon and tuna are excellent sources of DHA and other omega 3s, as are krill and marine algae. Dietary supplements are readily available in several forms.