Probiotic CFU Calculator

It depends on where you start, and Age Group is not the minor input it looks like. Health Goal sets the base target across a 10-40 billion CFU range (a 4x spread) and dominates at the Adult default, where Age Group only multiplies by 1.0. But Age Group's own multiplier spans 0.3 (child) to 1.2 (senior) — also a 4x range — so at higher health goals its absolute swing gets large too: at the antibiotic-recovery goal (40 billion base), moving from child to senior takes the target from 12 to 48 billion CFU, a 300 percent swing, not a modest 20 percent. Neither input is safely ignorable.

Strain count is looked up from the Health Goal alone — 4 for general, 8 for IBS, 6 for immune or antibiotic recovery — and the age multiplier applies only to the CFU target. A child gets 30 percent of the adult CFU but the identical number of strains.

Two conditions, either one sufficient: an age-adjusted CFU target above 20 billion, or a strain count above 6. Antibiotic recovery at adult dosing (40 billion) trips the first condition automatically; IBS (8 strains) trips the second regardless of age.

Not according to this model — the targets reflect typical studied ranges per goal, and the engine assigns antibiotic recovery the highest figure (40 billion) because that use case has the most aggressive dosing evidence. More CFU beyond your goal's range is not treated as additional benefit.