Quest Protein Bar Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Quest is the best-performing quest protein bar brand in July 2026, moving 80,000 units across 5 ASINs for 47.1% of Top 10 volume. Pure Protein follows with 30,000 units (17.6%), ahead of ALOHA on 30,000 units (17.6%).

With 6 brands splitting the Top 10 and 82.4% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $16.94 to $26.24, which frames the price band a competing listing has to justify.

Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, one ASIN forced its way in: B016MEN14O booked 10K units at $25.49, with ▲ 66.7% MoM change. On the growth side, B09PYB4MQS leads positive momentum with ▲ 3233.3% MoM growth on 10K units, with B0FHMLH6Q9 close behind at ▲ 100.0% MoM on 8K units.

The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.