Looking for affordable protein powder? Our Cheapest Protein Powder List ranks the lowest-cost options, compiled from our extensive reviews of hundreds of protein powders. We compare prices to bring you 30 of the lowest cost choices ordered by rank, ensuring you can find the most inexpensive protein powders available.

For more information, follow the links in the table to read our full reviews.

Our cheapest protein list is compiled with a focus on protein content, ensuring a fairer comparison among products. Protein powders with lower protein content, even if less expensive, will rank lower due to a higher proportion of fillers, additives, or flavoring agents. We adjust for this by dividing the product’s price by its protein content for comparison. However, this doesn’t mean that additional ingredients like BCAAs, digestive enzymes, probiotics, vitamins, and minerals aren’t potentially beneficial.

It’s important to note that products serving dual purposes, such as mass gainers and some meal replacements with high carbohydrates will not rank highly, as protein makes up a smaller percentage of the product. The same applies to ketogenic protein powders that are high in fat.