You can indeed have electrolyte drinks while you're breastfeeding. These drinks, often used to replenish lost fluids and essential minerals after physical activity, can help you stay hydrated, which is very important when you're breastfeeding. 

However, it's important to note that these drinks don't contain any known galactagogues. This means they don't have special ingredients that are specifically designed to increase your milk supply. So if you were hoping for a boost in milk production, you may be disappointed. 

Remember, the best way to stimulate milk production is through frequent breastfeeding or pumping. And while staying hydrated is important for your overall health, there isn't a direct correlation between fluid intake and increased milk supply.

So feel free to enjoy your electrolyte drink to maintain good hydration levels, but be mindful of the sugar content in some of these beverages.