Do Hydration Supplements Really Work? Everything You Need to Know

Let’s cut right to the chase—working out makes you sweat, and sweating means you’re losing fluids fast. What doesn’t get nearly enough attention is just how important it is to rehydrate quickly if you want to keep your performance up to snuff.

Your body’s made up of about 60% water, and sweating drains a good chunk of that in no time. Losing fluids messes with your body's balance in a big way, and it shows in your workout. Think about it—when you're suddenly short on something as crucial as water, it's no surprise your performance tanks.

Here’s the hard truth: if you don’t stay on top of your hydration game, your performance is going to nosedive. And pushing yourself through dehydration? Not only are you killing your workout, but you could also be doing some serious harm to your body.

That’s where hydration supplements come in. The idea behind these bad boys is simple—they help you hydrate fast and effectively. We’re talking about more than just water here; it’s about getting those critical electrolytes back into your system. So, let’s break down what hydration supplements are all about and how they stack up to other options like sports drinks or full-blown rehydration therapies.

What Exactly Are Hydration Supplements?

Hydration supplements are designed to help your body bounce back from dehydration by delivering key electrolytes like sodium, potassium, and magnesium. You’ll find them in powder, tablet, or ready-to-drink forms. If it’s aimed at curing dehydration, it fits the bill as a hydration supplement.

Why are these better than just chugging water? Simple—hydration supplements not only replace lost fluids but also boost essential nutrients that water alone can’t provide. These electrolytes keep your body functioning properly, especially when you're sweating buckets during a workout.

Hydration Supplements vs. Sports Drinks

A lot of people lump hydration supplements and sports drinks into the same category, but they’re not the same thing. While sports drinks can help with hydration, they’re mainly about giving you an energy boost with added sugar. They’re loaded with carbs to keep your energy levels up, but that’s not the focus of a hydration supplement.

Hydration supplements are more dialed in on replenishing electrolytes like sodium, potassium, and magnesium—without all the extra calories and sugar. Sports drinks? Not so much. They’re fine if you need a quick carb hit, but if it’s electrolyte replenishment you’re after, hydration supplements are the way to go.

The Key Players: What’s in a Hydration Supplement?

Here’s what you’re getting in most hydration supplements:

• Sodium: Helps regulate your body’s fluid balance and is a major player in preventing muscle cramps and fatigue.
• Chloride: Works alongside sodium to keep fluids moving and assists with oxygen transport.
• Potassium: Helps fluids move in and out of your cells. Without enough potassium, guzzling water won’t cut it after a hard workout.
• Magnesium: Keeps things moving by helping fluid transport and preventing muscle fatigue.

Do You Really Need Hydration Supplements?

For the average Joe who’s not working up much of a sweat, plain ol’ water will usually get the job done. But if you’re hitting intense workouts or sweating like crazy, you’ll want to pay attention to those electrolytes. Hydration supplements step in when water just isn’t enough to maintain proper fluid balance.

Research shows that even a 2% drop in body weight from fluid loss can wreck your performance, but hydration supplements can help prevent that by retaining fluids more effectively than water alone. They also keep your joints lubricated and delay the onset of muscle fatigue or heat-related issues.

Are Hydration Supplements Safe?

For the most part, yes. But there’s such a thing as too much of a good thing—taking in too many electrolytes without enough water can mess with your system. You might experience things like irregular heartbeats or, in extreme cases, kidney problems if you go overboard. Stick to the recommended dosages, and you’ll be golden.

Popular Hydration Supplements Reviewed

Here’s a quick rundown of some top options:

• Simply Good Supplements Hydration: A clean option with a solid electrolyte profile—no added sugars or junk.
• Liquid I.V. Hydration Multiplier: Packs a high electrolyte punch but comes with added sugar—great for endurance athletes.
• Nuun Sport Hydration: Low-sugar and ideal for everyday hydration or lighter workouts.
• LMNT Zero-Sugar Electrolytes: Keto-friendly and sugar-free—awesome for low-carb athletes.
• Ultima Replenisher: A more casual hydration option with lower sodium levels—good for non-extreme activities.

When Should You Reach for a Hydration Supplement?

Hydration supplements shine during:

• Intense exercise
• Heat exhaustion
• Fluid loss due to illness (like vomiting or diarrhea)
• High-altitude activities
• Older age, when your body has a tougher time staying hydrated

DIY Hydration: Can You Make Your Own?

Sure, you can whip up your own electrolyte drink with ingredients like sodium and potassium from stuff like coconut water or maple syrup, but hitting the right balance of electrolytes is tricky. Store-bought hydration supplements take the guesswork out of it and deliver exactly what your body needs.

Final Verdict: Are Hydration Supplements Worth It?

For mild dehydration, water might do the trick. But if you’re an athlete, regularly engage in intense workouts, or work in extreme conditions, hydration supplements can be a game-changer. They help you stay hydrated, prevent fatigue, and keep your performance on point when things start heating up.

About The Author Matt Mosman - Spearfish, South Dakota

Matt Mosman (MS, CISSN, CSCS) is a research scientist, endurance athlete, and the founder and Chief Science Officer at Simply Good Supplements. Matt holds his B.S. in Exercise Science from Creighton University and his M.S. in Exercise Physiology from the University of California. Matt and his family reside in Spearfish South Dakota where they enjoy running, mountain biking, camping, and all the outdoor adventures Spearfish has to offer.

References:

1. Naghii MR. The significance of water in sport and weight control. Nutr Health. 2000;14(2):127-32. doi: 10.1177/026010600001400205. PMID: 10904937.

2. Pence J, Bloomer RJ. Impact of Nuun Electrolyte Tablets on Fluid Balance in Active Men and Women. Nutrients. 2020 Oct 2;12(10):3030. doi: 10.3390/nu12103030. PMID: 33023276; PMCID: PMC7600513.

3. Li S, Xiao X, Zhang X. Hydration Status in Older Adults: Current Knowledge and Future Challenges. Nutrients. 2023 Jun 2;15(11):2609. doi: 10.3390/nu15112609. PMID: 37299572; PMCID: PMC10255140.