Comparison

DIM 100 mg + Broccoli Sprouts and DIM 300 300 mg

DIM 100 mg + Broccoli Sprouts (Natural Grocers by Vitamin Cottage) lists 2 distinct ingredients and DIM 300 300 mg (Zazzee Naturals) 3 (rows of one ingredient counted once); 2 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 0.72.

Amount per serving (and % of the Daily Value)
IngredientDIM 100 mg + Broccoli SproutsDIM 300 300 mg
Broccoli50 mg100 mg
Diindolylmethane100 mg300 mg
Black Pepper10 mg

Amounts are per serving as DSLD gives them: DIM 100 mg + Broccoli Sprouts, 1 vegetarian capsule; DIM 300 300 mg, 1 veggie capsule. Current labels entered October 2021 and October 2022. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own