When considering if a breastfeeding mother can use a specific multivitamin, it's important to look at the ingredients and their safety during lactation. Generally, many multivitamins are safe, but some components might not be recommended. Consulting with a healthcare provider or a pediatrician is the best way to ensure the multivitamin is appropriate for both mother and baby. They can provide personalized advice based on the mother's health, nutritional needs, and the specific multivitamin formulation.