Diindolylmethane, commonly known as DIM, is a naturally occurring compound formed in the body from indole-3-carbinol (I3C), a phytonutrient found in cruciferous vegetables such as broccoli, cabbage, cauliflower, and kale. When these vegetables are chewed or processed, enzymes convert glucobrassicin into I3C, which then readily transforms into DIM in the acidic environment of the stomach. DIM is not an estrogen itself, but rather interacts with estrogen metabolism, influencing the balance of various estrogen metabolites in the body. This interaction is the basis for much of the research into its potential health effects, particularly in areas related to hormone balance and cellular health. (Oregon State University Linus Pauling Institute - Micronutrient Information Center)
DIM is available as a dietary supplement and is often promoted for its effects on estrogen metabolism, including supporting a favorable balance of estrogen metabolites. It is not considered an essential nutrient, but rather a bioactive compound with potential pharmacological activities. Research into DIM is ongoing, exploring its implications for various physiological processes, particularly those related to hormone-sensitive conditions. As a supplement, its effects can vary among individuals due to differences in genetics, diet, and overall health status.
Deep dive
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Known interactions
Category rule: glp1 × supplement
Note
GLP-1 medications slow stomach emptying, changing how/when oral supplements absorb; rapid weight loss raises the importance of protein and micronutrients.
Time oral supplements when nausea is lowest; prioritize protein and micronutrients; discuss with your provider.
Category rule: supplement × medication
Note
Some supplements change how the body processes medications (absorption, liver enzymes, or additive effects).
Specific pairs are checked against a licensed drug database and shown with their own severity. Always confirm with your provider or pharmacist.
Frequently asked
Sources referenced
["Oregon State University Linus Pauling Institute - Micronutrient Information Center", "PubChem (National Center for Biotechnology Information)", "MedlinePlus (National Library of Medicine)", "DrugBank (University of Alberta)", "Journal of Nutrition (specific study on estrogen metabolism)", "The Cochrane Library"]
Stackwise compiles summaries from publicly available scientific and regulatory references. Always verify important decisions with a licensed clinician.
Related compounds
Others in the supplement category or studied for the same goals.
