Spirulina is an ideal functional supplement for children and adolescents in India, where nutritional deficiencies—especially in protein, iron, vitamin A, and essential micronutrients—remain widespread. Composed of over 60% complete protein, Spirulina provides all essential amino acids critical for growth, cognitive development, immune competence, and muscle formation (Khan et al., 2005). Rich in bioavailable iron, vitamin A (as β-carotene), B-complex vitamins, calcium, and γ-linolenic acid (GLA), it directly addresses common deficiencies contributing to anemia, stunted growth, and poor academic performance in Indian school-aged children (Selmi et al., 2011; Mani et al., 2000). Spirulina's superior digestibility and minimal allergenic potential make it highly suitable for pediatric use. Government-supported interventions and school feeding programs in India have demonstrated that Spirulina supplementation improves weight-for-age, hemoglobin levels, and general vitality among malnourished and undernourished children (Sudha et al., 2010). Its immunomodulatory and antioxidant properties further protect against frequent infections and environmental stressors, which are particularly high in urban and low-resource rural Indian settings. With its dense nutritional matrix and clinically validated outcomes, Spirulina stands as a best-in-class supplement for promoting optimal physical and mental development in children and teenagers across India.