Adhering to the correct water to powder ratio is critical for several reasons: 1. Nutritional Balance: The proper ratio ensures the baby receives the right amount of nutrients, including proteins, fats, vitamins, and minerals. 2. Digestive Health: Incorrect ratios can cause digestive issues such as constipation or diarrhea. 3. Hydration: An improper ratio can result in dehydration or overhydration, both of which can be harmful.