Pre-workout is the one category here where the sum sometimes cannot be made. That is not the fault of the sum.
Below is what a serving contains per product, set against the dose used in research. What is not on the label counts as zero.
Part of the market lists only the total weight of a blend and not the split within it. For those products there is no way to tell whether the expensive ingredient is a gram or fifty milligrams, and then there is nothing to compare.
