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Women of reproductive age should be counseled about the importance of achieving the recommended calcium intake level. Calcium supplements can be considered if dietary sources are inadequate.

Dietary Supplements

All women of reproductive age should be asked about their use of dietary supplements (vitamins, minerals, traditional or home remedies, herbal products, weight loss products, etc.) as part of preconception care and should be advised about what is or is not known about their safety, effects, and efficacy.

Essential Fatty Acids

Women should be encouraged to eat a diet rich in essential fatty acids, including omega-3 and omega-6 fatty acids. To achieve this, women should be advised to consume at least 8 to 12 ounces (oz) of a variety of seafood and no more than 6 oz of canned albacore tuna weekly.

Folic Acid

All women of reproductive age should be advised to ingest 0.4 mg (400 micrograms [μg]) of synthetic folic acid daily that is obtained from fortified foods or supplements, or both. In addition, all women should be advised to consume a balanced, healthy diet that includes folate-rich foods.


Women of reproductive age with iodine deficiency should be counseled about the risks of this condition to pregnancy outcomes and about the importance of maintaining an adequate daily dietary iodine intake of 150 μg during preconception, 220 μg when pregnant, and 290 μg during lactation.


At a preconception visit, screening should be conducted for women with risk factors for iron deficiency for the purposes of identifying and treating anemia. There is evidence to recommend that all women be screened at a preconception visit for iron deficiency anemia for the purpose of improving the perinatal outcome.

More Information

To see the complete list of the preconception clinical content and description of how the content was selected and rated, please read the full article.