Is a 16 oz Water Bottle Too Small for Your Hydration Needs?
                                
                                
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                                    7 min read                                
                            
                                According to the U.S. National Academies of Sciences, men require around 15.5 cups and women 11.5 cups of total daily fluid, meaning a single 16 oz bottle will need multiple refills to meet your needs. So, is a 16 oz water bottle too small? The answer depends entirely on your specific lifestyle and hydration habits.