A recent study conducted by researchers from the ICMR-National Institute of Nutrition in Barak Valley, Assam, India, found that 20.6% of pregnant women are deficient in vitamin B1 (thiamine). This deficiency poses significant health risks, including beriberi, which can lead to weakness, swelling, and heart failure. The study surveyed 1,083 pregnant and breastfeeding women across 120 villages, revealing that reliance on polished white rice, which loses most of its thiamine during milling, is a key factor in this health issue. Women consuming polished rice were found to be three times more likely to be deficient. In contrast, those who included traditional fermented fish in their diet showed lower deficiency rates, suggesting that these foods may provide natural protection against thiamine deficiency. The study highlights the urgent need for improved maternal nutrition strategies in India. Dr. Mahesh Kumar Mummadi, the lead investigator, emphasized that the burden of deficiency is preventable and called for thiamine to be prioritized in maternal health initiatives. Common signs of deficiency include balance issues, confusion, and irritability, while severe cases can lead to brain damage and heart failure.