protein shake

Residues left on produce and grains from how the crop was farmed. Organic certification prohibits synthetic pesticides, which is why the same fruit can rate very differently by farming method.

Preservatives, colorants, emulsifiers and flavorings added in processing — each rated on its own evidence record, from benign (vitamin E as a preservative) to contested (certain synthetic dyes).

The NOVA scale classifies how industrially transformed a food is, from whole ingredients (1) to ultra-processed formulations (4). Population studies associate heavy ultra-processed diets with worse health outcomes independent of nutrients.

Refined oils and added sugars — rated by what they are: cold-pressed fruit oils and whole sweeteners like honey rate well; hydrogenated oils and high-fructose syrups rate poorly.

Independent third-party verifications (USDA Organic, FSC, EPA Safer Choice…). Informational only — having none never lowers a score; verified claims can raise it.