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At this time, not much is known about DIM (diindolylmethane) and pregnancy. The supplement may have anti-estrogen properties and might affect the balance of estrogens in the body, which could cause serious problems in a pregnant woman. Until more information is available concerning DIM and pregnancy, pregnant women may want to avoid using this dietary supplement.

An Overview of Using DIM During Pregnancy

DIM (diindolylmethane) is a dietary supplement used for various purposes, including cancer prevention. DIM may affect estrogen in the body and may not be safe for use during pregnancy.

If DIM Safe for Pregnant Women?

Even though DIM is a dietary product available without a prescription, this does not automatically mean that it is safe for use during pregnancy. DIM may have anti-estrogen properties and might affect the balance of estrogens in the body. Since estrogen is an important hormone in pregnancy, any medication or herb that acts as an anti-estrogen could cause serious problems. Although normal amounts of DIM consumed through foods are probably safe for pregnant women, it cannot be assumed that medicinal use is also safe.
It is not known if DIM is safe for pregnant women. It is wise to avoid this supplement during pregnancy until more information is available.
If you are pregnant, it is always a good idea to ask your healthcare provider before taking any medication or supplement. If a natural medicine practitioner recommends that you use DIM during pregnancy, it would be wise to check with another healthcare provider, just to be safe (and to get a second opinion).
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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