Lowest-sodium protein powder per 25 g of protein

Sodium content in protein powder varies with formulation — some protein sources and flavoring or preservative systems carry more sodium than others — and serving sizes differ enough between brands that comparing milligrams per serving alone can be misleading. This page ranks protein powders by sodium per 25 grams of protein so that a small, protein-dense serving and a larger, more diluted serving are measured on the same basis. Lower sodium here describes the formulation as observed on the reviewed label, not a recommendation for any particular diet or medical condition; anyone managing sodium intake for a health reason should verify the current label and consult a healthcare provider rather than relying on this comparison alone. As with every metric on this site, figures reflect the most recent observation and can change between production runs.