ĐÁNH GIÁ HÀM LƯỢNG NATRI VÀ KALI CÔNG BỐ TRÊN NHÃN SO VỚI KẾT QUẢ KIỂM NGHIỆM TỪ CÁC SẢN PHẨM MUỐI VÀ GIA VỊ GIẢM NATRI TẠI VIỆT NAM

Abstract

Aims: To assess the compliance of nutrition labelling and quantify the agreement between declared analytically measured sodium and potassium content  in reduced-sodium salt products and salty condiments available on the Vietnam market.

Methods: A cross-sectional market surveillance study of commercially available products  self-declared reduced-sodium salts and salty condiments was conducted. Nutritional labeling information was collected and compared with applicable regulations; the sodium and potassium content declared on the product labels were compared with laboratory analysis results. Agreement was evaluated using uncertainty of measurement of ±10% and ±20%

Results: All products (n=9) reported basic identification information (100%), while nutrient disclosure was variable: sodium was declared in 88.9% of products, potassium in 55.6%, and energy in 22.2%. Substantial discrepancies were observed with 33.3% of sodium values and 22.2%-55.6% of potassium values exceeded declared levels, 33.3% of products contained sodium despite no declaration on the label, and 44.4% contained potassium without corresponding labelling. 

Conclusion: Inconsistent nutrition labelling and discrepancies between declared and measured sodium and potassium content from the products collected may limit their safe and effective use. Strengthening labelling accuracy, regulatory enforcement, and consumer communication is essential to enable informed choice and to support the responsible promotion of potassium‑enriched salt within national salt‑reduction and non‑communicable disease prevention strategies.