: These stores often stock large containers of brands like Optimum Nutrition or Premier Protein shakes.

: Often the cheapest for unflavored powders or specialized brands like Now Sports or Naked Nutrition , which can cost as little as 1 to 2 cents per gram of protein.

: You can find frozen chicken breasts, ground turkey, eggs (often sold in 15-dozen crates), and Greek yogurt at significantly lower unit prices than standard supermarkets.