High Calcium Boba from Egg Shells to Prevent Stunting and Boost the Immune System

Nutritional status and stunting are problems in several countries, including Indonesia. Calcium is one of the important micronutrients to prevent stunting, immune system can act as a second messenger lymphocytes maintain body's response. eggshells be processed into boba which popular community. This study aims examine high-calcium food source help increase immunity. research Literature Review open access articles published 2016 - 2021 on Google Scholar, PubMed, Science Direct. Duplicate reports were excluded from study. The keywords used searching journal database eggshells, calcium, system, foods. Research shows that every gram eggshell contains 381 mg calcium. Adequate calcium intake supports increasing height, maintaining bone health, preventing stunting. Increased intracellular essential for steps signaling induce proliferation, cytokine production, regulation transcription factors. Eggshells safely consumed if they kept 20 minutes finely ground with high content. High flour boost system.