Ingredients starting with S

Every ingredient carries a PureScore from 0–100 — lower means more concern. Informational, not medical advice. How PureScore works

• Sodium NitriteConverts to nitrosamines (carcinogens); linked to colorectal cancer.15Avoid
• Safflower OilIndustrial seed oil; high omega-6; refined and oxidation-prone.20Avoid
• Sesame OilHigh omega-6; commercially refined; matches industrial seed oil concern tier20Avoid
• Sunflower OilIndustrial seed oil; high omega-6; refined and oxidation-prone when heated.20Avoid
• Sodium Lauryl SulfateSkin irritant; strips natural oils; may be contaminated with 1,4-dioxane.35Poor
• SucraloseMay alter gut microbiome; studies show possible DNA damage at high doses.38Poor
• Sodium Laureth SulfateMay be contaminated with 1,4-dioxane; moderate skin irritant.40Poor
• Sodium BenzoateCombines with vitamin C to form benzene (carcinogen); linked to ADHD in children.42Poor
• Soy SauceHigh sodium; fermented soy and wheat; natural glutamate; allergen concern45Fair
• Soy Protein IsolateHexane-extracted; phytoestrogen concerns; highly processed; antinutrient concerns45Fair
• Sodium Coco-SulfateModerate skin irritant; similar to SLS but broader carbon chain.45Fair
• Soy LecithinSoy-derived emulsifier; usually GMO and solvent-extracted; generally well tolerated.50Fair
• Soy Protein ConcentrateLess processed than isolate; phytoestrogen concerns persist50Fair
• Sodium TripolyphosphatePhosphate additive; cumulative dietary phosphate concern55Fair
• Sodium CaseinateCasein treated with sodium hydroxide; highly processed; potential casein sensitivity concern55Fair
• Soluble Corn FiberEnzyme-processed corn fiber; generally tolerated; ultra-processed origin55Fair
• Sodium HexametaphosphateComplex phosphate additive; cumulative phosphate overload concern58Fair
• Soy FlourPhytoestrogen content; less processed than isolate but defatted soy58Fair
• Sodium Stearoyl LactylateBread conditioner emulsifier; recognized as safe; some concern at elevated dietary intake58Fair
• Sodium Erythorbate60Good
• Sodium HydroxideLye processing agent; fully neutralized in finished product; safe as trace residue60Good
• Sodium PhosphateCumulative dietary phosphate concern60Good
• Silicon DioxideAnti-caking agent; nanoparticle form under continuing study65Good
• Sorbic Acid65Good
• Sodium Diacetate65Good
• Sodium Acid PyrophosphateLeavening acid; cumulative dietary phosphate concern65Good
• SorbitolMay cause bloating and diarrhea in large amounts.65Good
• Skim MilkFat removal reduces fat-soluble vitamins; more processed than whole milk68Good
• Sodium Citrate68Good
• Sodium Lactate68Good
• Soy MilkPhytoestrogen content; less processed than soy protein isolate.70Good
• Spices70Good
• Sodium Alginate72Good
• Sour Cream72Good
• Stevia Leaf Extract72Good
• Shrimp75Good
• Sunflower SeedsHigh omega-6 at scale; otherwise nutritious whole seed78Good
• Sesame Seeds78Good
• Sourdough Starter78Good
• Salicylic AcidAvoid during pregnancy; may increase sun sensitivity.78Good
• Sodium Chloride85Excellent
• Sea Salt Flakes85Excellent
• Strawberries85Excellent
• Spinach88Excellent
• Shea Butter95Excellent
• Squalane97Excellent