The National Population and Family Planning Agency (BKKBN) in Indonesia is urging people to maintain proper birth spacing to support mothers in providing exclusive breastfeeding to their children. BKKBN head Hasto Wardoyo recommends a 30-month interval between births to optimize breastfeeding benefits. Adjusting birth spacing can also reduce the risk of maternal and child mortality. Studies have shown that the ideal age gap between siblings is three to five years. Non-optimal breastfeeding, especially in the first 1000 days of a child’s life, due to short birth spacing poses a high risk of malnutrition and stunting among children. West Sumatra province, with a relatively high total fertility rate and a stunting prevalence of 25.2%, highlights the correlation between stunting and short birth spacing. BKKBN suggests the use of contraceptives to provide mothers time for breastfeeding and asks regions to increase and absorb Special Allocation Funds and Family Planning Operational Assistance. BKKBN encourages exclusive breastfeeding to prevent stunting in children’s growth.