Background Nutritional deficiencies persist as a major public health challenge in India alongside a rising non-communicable disease burden. The Center for Nutritional Health at AIIMS Mangalagiri provides comprehensive nutritional services including counseling, anthropometric assessment, and laboratory diagnosis of key deficiencies. We aimed to determine the prevalence of anemia, vitamin D and vitamin B12 deficiencies, and malnutrition (underweight and overweight/obesity); examine gender-based differences in nutritional parameters; identify patterns of multiple concurrent deficiencies; and analyze their age-wise distribution among patients attending the center, to inform targeted intervention strategies. Methodology We conducted a cross-sectional study using retrospective clinical data from 2,303 patients attending the Center for Nutritional Health at AIIMS Mangalagiri over 30 months. Demographic, anthropometric, hemoglobin, 25-hydroxyvitamin D (25(OH)D), vitamin B12, calcium, and 24-hour dietary recall data were obtained from routine clinical records. Deficiencies were defined using World Health Organization (WHO) anemia criteria, standard international vitamin reference ranges, and Asian-specific body mass index (BMI) cutoffs. Analyses included Pearson chi-square, Mann-Whitney U, Spearman rank correlation, and multivariable binary logistic regression. Results Among 2,303 participants (1,681 women (73.0%); mean age, 42.4 ± 13.9 years), anemia affected 1,195 of those tested (74.2%), of whom 764 (47.5%) had moderate-to-severe anemia. Vitamin D deficiency (.
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