Evening primrose oil contains omega-6 fatty acids—a promising ingredient used to help improve fertility in similar ways to that of fish and flax oils.
However, due to how evening primrose oil can affect the uterus, supplements for ovulation such as this must be taken before and not during ovulation. To make this easier, begin tracking the menstrual cycle to take the supplement at the precise time to maximize its effects.
The best way to take evening primrose oil if the goal is to promote natural pregnancy is to start by administering precise dosages in capsule form on the first day of the cycle.
Continue taking evening primrose oil until the first day of ovulation. Ovulation refers to the release of the egg from the ovaries.
Generally speaking, no evening primrose should be taken one to two times daily at 1500 to 3000 mg, beginning on day 1 and ending on day 14 of the cycle.
Side effects of evening primrose oil include upset stomach, headache, diarrhea, and nausea, depending on the person.
The best brands of evening primrose oil fertility supplements are BioLife Evening Primrose Oil, NOW Super Primrose, and Source Naturals Evening Primrose Oil.