Sodium Benzoate in Your Food Is Damaging Reproductive Health
NonToxCo Research
Science & Safety Team · 4/6/2026
That preservative keeping your soda and salad dressing "fresh"? It's called sodium benzoate, and a new study says it damages reproductive organs and disrupts hormones.
What the Study Found
A 2026 study in Regulatory Toxicology and Pharmacology found that sodium benzoate induces reproductive toxicity. It causes hormonal disruption, ovarian damage, and alters the expression of kisspeptin and RFRP-3, two proteins that control reproductive hormone release.
Kisspeptin is one of the master switches for puberty and fertility. RFRP-3 helps regulate reproductive cycles. When these get thrown off, the entire hormonal system suffers.
Where Sodium Benzoate Hides
Sodium benzoate (listed as E211 on labels) is one of the most common preservatives in the food supply. You'll find it in soft drinks, fruit juices, condiments, pickles, and salad dressings. It's also in some medicines and cosmetics.
Most people eat it every single day without thinking about it.
What You Can Do
Check ingredient labels for sodium benzoate or E211. Choose fresh foods over packaged ones when possible. Make your own dressings and sauces. It takes five minutes and you skip the preservatives entirely.
Check out our non-toxic kitchen alternatives for cleaner food storage and prep.
Also see glass food containers for safer alternatives.Source: Wu Y, Chen Y, et al. (2026). Regul Toxicol Pharmacol.