Comparison

Muscle Fiber Unflavored Powder and L-Glutamine + FOS Powder

Muscle Fiber Unflavored Powder (FINAFLEX) lists 5 distinct ingredients and L-Glutamine + FOS Powder (Douglas Laboratories) 3 (rows of one ingredient counted once); 3 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 0.68.

Amount per serving (and % of the Daily Value)
IngredientMuscle Fiber Unflavored PowderL-Glutamine + FOS Powder
Carbohydrate3 g1.5 g
Glutamine5 g2.5 g
Fructo-Oligosaccharides3,000 mg1,500 mg
Vitamin D12.5 mcg (63%)
Fiber3 g

Amounts are per serving as DSLD gives them: Muscle Fiber Unflavored Powder, 7.5 g; L-Glutamine + FOS Powder, 1 tsp. Current labels entered August 2018 and February 2014. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own