E701 – Tetracyclines

Description

Broad-spectrum antibiotic used in animal feed to promote growth and prevent disease

Risks

Notes

Tetracycline is a broad-spectrum antibiotic that belongs to a family of medicines originally discovered from soil bacteria in the 1940s. While the original tetracycline was extracted from Streptomyces bacteria found in nature, today it's primarily produced through fermentation processes using controlled bacterial cultures, similar to how yogurt or beer is made but in sterile laboratory conditions. In the food industry, tetracycline isn't added directly to the foods you eat. Instead, it's sometimes used in animal feed as a medication to treat or prevent bacterial infections in livestock like cattle, pigs, and poultry. When animals are treated with tetracycline, trace amounts can potentially remain in meat, milk, or eggs, which is why it receives an E-number classification. This is a synthetic antibiotic that raises important considerations for consumers. Many countries have strict regulations about withdrawal periods - meaning animals must wait a specific time after treatment before their products can enter the food supply. There are growing concerns about antibiotic resistance, leading to increased restrictions on antibiotic use in agriculture. For people with tetracycline allergies, this could be a consideration, though residue levels in properly regulated food supplies are typically extremely low.