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Indole-3-Carbinol: study protocols

7 study groups say how much Indole-3-Carbinol participants took a day. These are the doses the studies gave. They are not a recommendation.

Indole-3-Carbinol: what the research found →

Dose per serving from products

65 products in our catalogue print how much Indole-3-Carbinol a serving holds.

Most common: 100 mg to 250 mg, 54% of 65 products.

Dose per servingProducts
10 mg or less
3
10 mg to 25 mg
3
25 mg to 50 mg
5
50 mg to 100 mg
10
100 mg to 250 mg
35
250 mg to 500 mg
9

Dose per serving from research

7 study groups in 5 studies say how much Indole-3-Carbinol participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 250 mg to 500 mg, 71% of 7 study groups.

Daily doseStudy groups
100 mg to 250 mg
2
250 mg to 500 mg
5

Commonly used together

2 of 7 study groups took Indole-3-Carbinol with something else, but nothing that 3 or more different studies gave.

7 study groups

Study
Placebo-controlled trial of indole-3-carbinol in the treatment of CIN
2000 · 400 mg/day I-3-C group · Women with biopsy-proven CIN II–III
400 mg12 weeks9
Placebo-controlled trial of indole-3-carbinol in the treatment of CIN
2000 · 200 mg/day I-3-C group · Women with biopsy-proven CIN II–III
200 mg12 weeks8
A randomized phase II trial of indole-3-carbinol in the treatment of vulvar intraepithelial neoplasia
2006 · 200 mg/day of I3C · Women with histologically confirmed high-grade vulvar intraepithelial neoplasia
200 mg26 weeks—
A randomized phase II trial of indole-3-carbinol in the treatment of vulvar intraepithelial neoplasia
2006 · 400 mg/day of I3C · Women with histologically confirmed high-grade vulvar intraepithelial neoplasia
400 mg26 weeks—
Long-term responses of women to indole-3-carbinol or a high fiber diet
1994 · arm 1 · women; age range and health condition not stated
400 mg90 days20
Endocrine and lipid responses to chronic androstenediol-herbal supplementation in 30 to 58 year old men
2001 · AND-HB · Healthy men aged 30–58 years
450 mg4 weeks28
Effects of androstenedione-herbal supplementation on serum sex hormone concentrations in 30- to 59-year-old men
2001 · DION · Healthy men aged 30–59 years
300 mg4 weeks28