Comparison

Psyllium and Psyllium Fiber

Psyllium (Reliable-1 Laboratories) lists 4 distinct ingredients and Psyllium Fiber (21st Century) 4 (rows of one ingredient counted once); 4 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 1.00: the same ingredients, at the amounts in the table below.

Amount per serving (and % of the Daily Value)
IngredientPsylliumPsyllium Fiber
Carbohydrate2 g2 g
Potassium25 mg (under 1%)25 mg (under 1%)
Fiber4 g2 g
Iron0.4 mg (2%)0.4 mg (2%)

Amounts are per serving as DSLD gives them: Psyllium, 5 capsules; Psyllium Fiber, 5 capsules. Current labels entered September 2018 and September 2019. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own

  • PsylliumReliable-1 Laboratories: every row against all products listing it
  • Psyllium Fiber21st Century: every row against all products listing it