Amazon offers the 5-lb. Jar of Twinlab Vanilla Slam 100% Whey Protein Fuel
for $31.49. Add it to you cart via Subscribe & Save and it falls to $26.77
with free shipping
. That's the lowest total price we could find by $8, although we saw it for $4 less in June. It contains 25g of protein per serving.
Of note, be sure to cancel Subscribe & Save after your order ships, or you'll be billed for subsequent shipments.