Shelf life is a year. I will likely make it through three quarters or a bit more before it expires. I historically used NLS in 5lb buckets but as they are about $150 decided to go this route. Typically a buckets lasts me 3 months. So since the bag is 25lbs I should use about 20 or so in the yearHow long is that big sack going to last?
I've been using their gel diets for several years now.