Does Polar seltzer count as water? Yes, it does.
                                
                                
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                                    4 min read                                
                            
                                According to nutrition experts, plain seltzer water is just as hydrating as still water, making it a viable option for your daily fluid intake. So, does Polar seltzer count as water? Yes, the key is to choose varieties without added sugars or sweeteners to reap the full hydration benefits.