EstroDIM® by Ortho Molecular Products

This fits cycling women with PMS, breast tenderness, or heavy periods who suspect sluggish estrogen metabolism, and perimenopausal adults whose symptoms flare when estrogen spikes relative to progesterone. It also helps if your diet is light on cruciferous vegetables. Track with labs: Estradiol, Progesterone, SHBG (sex hormone–binding globulin, the carrier protein), and urinary estrogen metabolites. Men on testosterone who see estradiol creep up on labs sometimes use DIM under clinician guidance.

DIM (diindolylmethane) is the compound your body makes from indole-3-carbinol in broccoli, kale, and Brussels sprouts. It shifts how estrogen is processed in the liver toward the “2‑hydroxy” family of metabolites and away from the 16‑ and 4‑hydroxy routes, which can be more stimulatory to tissue. That metabolic shift shows up on urinary estrogen metabolite testing within 2 to 4 weeks. Vitamin E here acts as a lipid antioxidant, helping stabilize cell membranes while you adjust dose.

One capsule daily with food is the manufacturer’s guidance. The 300 mg DIM here is a higher, repletion-level dose; many clinicians start at 100–150 mg and titrate to effect to minimize headaches or nausea. Expect symptom changes within 4 to 8 weeks, and metabolite shifts sooner. Recheck Estradiol, SHBG, and urinary estrogen metabolites after 4 to 8 weeks. If your estradiol is already low, use a lower dose or reconsider.

Avoid in pregnancy, when trying to conceive, and during breastfeeding. Skip if you have low-estrogen symptoms (vaginal dryness, hot flashes with low readings) since DIM can lower estrogenic tone further. Coordinate with your clinician if you use hormonal contraception or hormone therapy, as DIM can alter hormone metabolism. If you’re on tamoxifen, aromatase inhibitors, warfarin, or drugs cleared by CYP3A4, get medical guidance before starting.