WheyIndexCleanest protein powders
Compare US powders by six ingredient preferences.
How we define “cleanest”
Each powder earns one check for no artificial colours, artificial flavours, artificial preservatives, artificial sweeteners, fillers or high-fructose corn syrup. All six checks have equal weight. Our filler check includes bulking agents and thickening gums.
These are ingredient preferences, not contaminant tests or a safety rating. Passing six checks does not mean a powder is healthier or free of heavy metals. This ranking is separate from the overall WheyIndex score.
We use the ingredient classifications behind each product’s formulation report. Unknown or incomplete ingredient evidence is labelled and placed last, including behind products with zero checks. Ties use brand, product name, then product ID. Results cover this market’s catalogue, including out-of-stock products; filters can narrow it.
